CA2028014A1 - Ramp king with folding tailgate - Google Patents
Ramp king with folding tailgateInfo
- Publication number
- CA2028014A1 CA2028014A1 CA 2028014 CA2028014A CA2028014A1 CA 2028014 A1 CA2028014 A1 CA 2028014A1 CA 2028014 CA2028014 CA 2028014 CA 2028014 A CA2028014 A CA 2028014A CA 2028014 A1 CA2028014 A1 CA 2028014A1
- Authority
- CA
- Canada
- Prior art keywords
- panels
- ramp
- tailgate
- panel
- assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/43—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle
- B60P1/435—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using a loading ramp mounted on the vehicle the ramp being attached to or making part of the side- or tailboards of the vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A vehicle tailgate ramp assembly comprising a plurality of rectangular panels pivotally connected to each other in such a way that the assembly can be used as loading ramp when the panels are unfolded. A panel acts as a completely closed tailgate when the panels are folded onto one another.
A vehicle tailgate ramp assembly comprising a plurality of rectangular panels pivotally connected to each other in such a way that the assembly can be used as loading ramp when the panels are unfolded. A panel acts as a completely closed tailgate when the panels are folded onto one another.
Description
TEC~NICAL FIE~D
The present invention relates to a vehicle loading ramp and more particularly, to a loading ramp adapted to serve as a tailgate in the folded position.
BACRGROUND O~ T~E INVE~TIQN
The loading and unloading of bulky, heavy objects from a vehicle such as a truck has presented a problem for some time. For example, the weight of the object may be such that it renders manual loading almost impossible. Alternative solutions have been developed to address this problem. One such solution involves the use of ramps. These however are bulky, rendering their handling at the loading site difficult. Further, such ramps take up considerable storage space when not in use. Recently vehicle tailgates that are capable o~ also being used as loading ramps have become available.
One example of such a convertible tailgate is disclosed in Canadian Patent No. lr238,156 of Hanson issued June 2~, 1988.
That patent discloses a vehicle tailgate ramp including two separate foldable flow-through ramps. Each ramp after use, is removed and folded for storage in a movabIe tailgate frame at the rear of a vehicle. This device still requires a lot of manipulation before loadiny and/or unloading can he achieved.
Canadian Patent No. 847,002 issued July 21, 1970 to Hall illustrates a flow-through vehicle loading ramp which may be 2~2~
attached to ~he tailgate of a vehicle. Unit~d States Patent No.
4,761,847 issued August 9, l988 to Savage relates to a portable folding ramp and is of general background interest.
It is an object o~ the present invention to provide an improved vehicle tailgate ramp assembly wherein the vehicle tailgate functions as a ramp when unfolded.
8UM~RY OF ~HE INV~TION
In accordance with the present invention a foldable vehicle tailgate ramp assembly is provided. The ramp comprises a ~0 plurality of rectangular ramp panels, each having top and bottom surfaces and longitudinal and lateral sides. The first of these ramp panels is pivotably mountable to a vehicle to form a tailgate.
The tailgate is adapted when in position on the vehicle to swing about an axis adjacent a lower longitudinal side of the first panel between a closed, vertical first position to a second open, ramp position. Means are provided to pivotably connect the ramp panels along adjacent longitudinal aides so as to unfold into an operable ramp position with the panels held in coplanar relationship when the first of the xamp panels is in open position, and fold into a storage position with the first of the ramp panels in closed position. Means are provided to releasably secure the ramp panels in first position.
, ~. .
' - 2 ~
BiRIEF lDB~3CRIP~l!ION 0F 'l'HE DRAWI~G13 These and other objects and advantages of the invention will become apparent upon reading the following detailed dessription and upon referring to the drawings in which:
FIGURE 1 is a perspective view of the folded tailgate ramp assembly in accordance with the present invention on the rear of a pick up truck;
FIGURE 2 is a perspective view of the tail~ate ramp assembly of FIGURE 1, unfolded as a ramp;
FI~URE 3 is a side view of the ramp of FIGURE 2~ The folding of the ramp is shown in phantom lines;
FIGURE 4 is a side view o~ the tailgata ramp assembly of FIGURE l;
FIGURE 5 is a rear view of the vehicle tailgate ramp assembly of FIGURES 1 and 4 in a folded posikion;
FIGURE 6 is a broken exploded view of the hinge assembly : joinin~ panels making up the ~ailgate ramp assembly o~ the present ; invention;
~ FIGURE 7 is a broken exploded view of a latching device ~or the panels of the present invention; and FIGURE 8 is a side view of the latching device of FIGURE
7.
While the invention will be described in conjunction~with an example embodiment it will be understood that it is not intended 25~ to limit the invention to such embodiment~ On the contrary, i~ is intended to cover all alternatives, modifications and equivalents 2~2~
as may be included within the spirit and scope of the invention as defined by the appended claims.
DETAILED DE~CRIPTIgN OF T~ INV~N~ION
In the drawings, similar features have been given similar reference numerals.
FIGURES 1 and 2 illustrate respectively a vehicle tailgate ramp assembly 2 of the preferred embodiment of the present invention in ~olded and unfolded positions mounted on the rear of a pick-up truck 3.
10As shown in FIGURE 2 the vehicle tailgate ramp assembly 2 of the preferred embodiment comprise~s a plurality of panels 4, each panel pivotably ~ecured to its adjacent panel or panels, each of the panels having a top surface 6, a bottom surface 8, longitudinal si~es 10 and lateral sides 12.
15Referring to FIGURES 1 and 2, it can be se.en that an innermost panel 13 is of such width that when folded it functions as a tailgate to completely enclose the rear of pick-up truck 3.
The other panel~ 4 are generally of smaller width. The panels 4 are connected to each other by a hinge assembly 14, to be described in more detail hereinafter, and are maintained in a folde.d position, when not used as a ramp, by a paix of spring-loaded : latches 16 and a spider latch 18. A pair of conventional la~ches 19 at the top of the lateral sides of panel ~3 releasably engage : corresponding portions of the rear o~ pick-up truck 3 to enclose it like a conventional tailgate and secure it in vertical position.
, .
~2~
With reference $o FIGURE 3 the longitudinal side 10 of each panel 4 is pi~otally joined to a corresponding side 10 of an adjacent panel ~ by hinge means 14, details of which will be set out subsequently. Panel 13 is pivotably mount~d at its bottom to vehicle 3 by hinge 22 to swing about an axis through that hinge from a first, closed position as shown in phantom to a second opened position as shown in full line. As shown in FIGURES 2 and 3 the top surfaces 6 of the panels 4 are substantially coplanar with respect to one another when the tailgate ramp assembly is completely unfolded. As shown in FI~URE 6, the construction of the hinge assembly 14 is such that when the panels 4 are unfolded to the extent that their top surfaces are coplanar, a stop block 24 limits any further relative pivotal movement of the panels in that same direction. When folded, the top ~surfaces 6 of consecutive panels 4 opposedly face one another.
As can be seen in FIGURE 2 each of the panels is, for example, reinforced by a plurality of longitudinal bracing members 26 affixed to expanded metal sheeting 28. To further reinforce and support the vehicle tailgate ramp assembly when in the unfolded ~ position, a telescopic leg 30 is pivotally connected to longitudinal sides 12 of a panal 4 as illustrated. The precise location of the leg 30 will depend upon the. length of the tailgate ramp assembly. The height of the leg 30 can be telescopically longitudinally adjusted so as to adapt to different height requirements. To give further strength to the tailgate ramp assembly in the unfolded position the first panel 13 when unfolded may or may not rest on bumper 32 of the vehicle 3.
- . .
-` 2~2~
FIGURES 4 and 5 illustrate the tailgate ramp assembly in folded position with the latches 16 and lg retaining the ramp panels 4 in such position.
As can be seen in FI~URE 6, to enable the panels 4 to 5pivot with respect to each other, aligned hinge sleeves 34 are secured to different ones o~ the adjacent longitudinal sides 10 of adjacent panels 4 so as to receive hinge rod 36. Stop block 24 is welded to longitudinal side 10 o~ one ramp panel 4 while a surface bearing bar 38 is welded in confronting fashion to the 10corresponding longitudinal side 10 of adjacent ramp panel 4. In operation as the panels are unfolded, hing~ sleeves 34 of each adjacent pair of panels for rotate around hinge rod 36 until stop block 24 rests against surface bearing bar 38. Stop block 24 is of such a construction that, when panels 4 are completely unfolded and 15coplanar, it prevents any further rotat:ion of hinge rod 36 while abutting against surface bearing bar 38.
Spring-loaded latches 16, slecured as illustrated to opposite lateral sides 12 of the panel 4 adjacent panel 13, are ~used to releasably secure the ramp panels 4 to the first panel 13 20(FIGURES 7 and 8~. Each latch 16 comprises a casing 40 encasing a spring 42 biased against a square ~pring stop 44 ~ixed within casing 40. A pos~ 46, with flange cap 47, passes through the aligned holes 48 of casing 40 and is weldeA to one of the lateral sides 12 of lowermost panel ~ so that casing 40 can rotate on pos~
2546. In operation a ~inger 50 activated by handle 51, acting against the bias of spring 42 secured thereto, is pulled until the finger grips lateral sides 12 of the other folded ramp panels 4 and r~tains ramp panels 4 in folded position.
Thus it is apparent that there has been provided in accordance with the inventi4n a vehicle tailgate ramp assembly that fully satisfies the objects, aims and advantagas set forth above.
While the invention has been described in conjunction with a specific embodiment thereof/ ik is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description~ Accordingly, it is intended to embrace all such alternatives, modifications and variations as fall within the spirit and broad scope of the invention.
:
.. . .
, ~
The present invention relates to a vehicle loading ramp and more particularly, to a loading ramp adapted to serve as a tailgate in the folded position.
BACRGROUND O~ T~E INVE~TIQN
The loading and unloading of bulky, heavy objects from a vehicle such as a truck has presented a problem for some time. For example, the weight of the object may be such that it renders manual loading almost impossible. Alternative solutions have been developed to address this problem. One such solution involves the use of ramps. These however are bulky, rendering their handling at the loading site difficult. Further, such ramps take up considerable storage space when not in use. Recently vehicle tailgates that are capable o~ also being used as loading ramps have become available.
One example of such a convertible tailgate is disclosed in Canadian Patent No. lr238,156 of Hanson issued June 2~, 1988.
That patent discloses a vehicle tailgate ramp including two separate foldable flow-through ramps. Each ramp after use, is removed and folded for storage in a movabIe tailgate frame at the rear of a vehicle. This device still requires a lot of manipulation before loadiny and/or unloading can he achieved.
Canadian Patent No. 847,002 issued July 21, 1970 to Hall illustrates a flow-through vehicle loading ramp which may be 2~2~
attached to ~he tailgate of a vehicle. Unit~d States Patent No.
4,761,847 issued August 9, l988 to Savage relates to a portable folding ramp and is of general background interest.
It is an object o~ the present invention to provide an improved vehicle tailgate ramp assembly wherein the vehicle tailgate functions as a ramp when unfolded.
8UM~RY OF ~HE INV~TION
In accordance with the present invention a foldable vehicle tailgate ramp assembly is provided. The ramp comprises a ~0 plurality of rectangular ramp panels, each having top and bottom surfaces and longitudinal and lateral sides. The first of these ramp panels is pivotably mountable to a vehicle to form a tailgate.
The tailgate is adapted when in position on the vehicle to swing about an axis adjacent a lower longitudinal side of the first panel between a closed, vertical first position to a second open, ramp position. Means are provided to pivotably connect the ramp panels along adjacent longitudinal aides so as to unfold into an operable ramp position with the panels held in coplanar relationship when the first of the xamp panels is in open position, and fold into a storage position with the first of the ramp panels in closed position. Means are provided to releasably secure the ramp panels in first position.
, ~. .
' - 2 ~
BiRIEF lDB~3CRIP~l!ION 0F 'l'HE DRAWI~G13 These and other objects and advantages of the invention will become apparent upon reading the following detailed dessription and upon referring to the drawings in which:
FIGURE 1 is a perspective view of the folded tailgate ramp assembly in accordance with the present invention on the rear of a pick up truck;
FIGURE 2 is a perspective view of the tail~ate ramp assembly of FIGURE 1, unfolded as a ramp;
FI~URE 3 is a side view of the ramp of FIGURE 2~ The folding of the ramp is shown in phantom lines;
FIGURE 4 is a side view o~ the tailgata ramp assembly of FIGURE l;
FIGURE 5 is a rear view of the vehicle tailgate ramp assembly of FIGURES 1 and 4 in a folded posikion;
FIGURE 6 is a broken exploded view of the hinge assembly : joinin~ panels making up the ~ailgate ramp assembly o~ the present ; invention;
~ FIGURE 7 is a broken exploded view of a latching device ~or the panels of the present invention; and FIGURE 8 is a side view of the latching device of FIGURE
7.
While the invention will be described in conjunction~with an example embodiment it will be understood that it is not intended 25~ to limit the invention to such embodiment~ On the contrary, i~ is intended to cover all alternatives, modifications and equivalents 2~2~
as may be included within the spirit and scope of the invention as defined by the appended claims.
DETAILED DE~CRIPTIgN OF T~ INV~N~ION
In the drawings, similar features have been given similar reference numerals.
FIGURES 1 and 2 illustrate respectively a vehicle tailgate ramp assembly 2 of the preferred embodiment of the present invention in ~olded and unfolded positions mounted on the rear of a pick-up truck 3.
10As shown in FIGURE 2 the vehicle tailgate ramp assembly 2 of the preferred embodiment comprise~s a plurality of panels 4, each panel pivotably ~ecured to its adjacent panel or panels, each of the panels having a top surface 6, a bottom surface 8, longitudinal si~es 10 and lateral sides 12.
15Referring to FIGURES 1 and 2, it can be se.en that an innermost panel 13 is of such width that when folded it functions as a tailgate to completely enclose the rear of pick-up truck 3.
The other panel~ 4 are generally of smaller width. The panels 4 are connected to each other by a hinge assembly 14, to be described in more detail hereinafter, and are maintained in a folde.d position, when not used as a ramp, by a paix of spring-loaded : latches 16 and a spider latch 18. A pair of conventional la~ches 19 at the top of the lateral sides of panel ~3 releasably engage : corresponding portions of the rear o~ pick-up truck 3 to enclose it like a conventional tailgate and secure it in vertical position.
, .
~2~
With reference $o FIGURE 3 the longitudinal side 10 of each panel 4 is pi~otally joined to a corresponding side 10 of an adjacent panel ~ by hinge means 14, details of which will be set out subsequently. Panel 13 is pivotably mount~d at its bottom to vehicle 3 by hinge 22 to swing about an axis through that hinge from a first, closed position as shown in phantom to a second opened position as shown in full line. As shown in FIGURES 2 and 3 the top surfaces 6 of the panels 4 are substantially coplanar with respect to one another when the tailgate ramp assembly is completely unfolded. As shown in FI~URE 6, the construction of the hinge assembly 14 is such that when the panels 4 are unfolded to the extent that their top surfaces are coplanar, a stop block 24 limits any further relative pivotal movement of the panels in that same direction. When folded, the top ~surfaces 6 of consecutive panels 4 opposedly face one another.
As can be seen in FIGURE 2 each of the panels is, for example, reinforced by a plurality of longitudinal bracing members 26 affixed to expanded metal sheeting 28. To further reinforce and support the vehicle tailgate ramp assembly when in the unfolded ~ position, a telescopic leg 30 is pivotally connected to longitudinal sides 12 of a panal 4 as illustrated. The precise location of the leg 30 will depend upon the. length of the tailgate ramp assembly. The height of the leg 30 can be telescopically longitudinally adjusted so as to adapt to different height requirements. To give further strength to the tailgate ramp assembly in the unfolded position the first panel 13 when unfolded may or may not rest on bumper 32 of the vehicle 3.
- . .
-` 2~2~
FIGURES 4 and 5 illustrate the tailgate ramp assembly in folded position with the latches 16 and lg retaining the ramp panels 4 in such position.
As can be seen in FI~URE 6, to enable the panels 4 to 5pivot with respect to each other, aligned hinge sleeves 34 are secured to different ones o~ the adjacent longitudinal sides 10 of adjacent panels 4 so as to receive hinge rod 36. Stop block 24 is welded to longitudinal side 10 o~ one ramp panel 4 while a surface bearing bar 38 is welded in confronting fashion to the 10corresponding longitudinal side 10 of adjacent ramp panel 4. In operation as the panels are unfolded, hing~ sleeves 34 of each adjacent pair of panels for rotate around hinge rod 36 until stop block 24 rests against surface bearing bar 38. Stop block 24 is of such a construction that, when panels 4 are completely unfolded and 15coplanar, it prevents any further rotat:ion of hinge rod 36 while abutting against surface bearing bar 38.
Spring-loaded latches 16, slecured as illustrated to opposite lateral sides 12 of the panel 4 adjacent panel 13, are ~used to releasably secure the ramp panels 4 to the first panel 13 20(FIGURES 7 and 8~. Each latch 16 comprises a casing 40 encasing a spring 42 biased against a square ~pring stop 44 ~ixed within casing 40. A pos~ 46, with flange cap 47, passes through the aligned holes 48 of casing 40 and is weldeA to one of the lateral sides 12 of lowermost panel ~ so that casing 40 can rotate on pos~
2546. In operation a ~inger 50 activated by handle 51, acting against the bias of spring 42 secured thereto, is pulled until the finger grips lateral sides 12 of the other folded ramp panels 4 and r~tains ramp panels 4 in folded position.
Thus it is apparent that there has been provided in accordance with the inventi4n a vehicle tailgate ramp assembly that fully satisfies the objects, aims and advantagas set forth above.
While the invention has been described in conjunction with a specific embodiment thereof/ ik is evident that many alternatives, modifications and variations will be apparent to those skilled in the art in light of the foregoing description~ Accordingly, it is intended to embrace all such alternatives, modifications and variations as fall within the spirit and broad scope of the invention.
:
.. . .
, ~
Claims (8)
1. A foldable vehicle tailgate ramp assembly comprising-(a) a plurality of rectangular ramp panels each having top and bottom surfaces and longitudinal and lateral sides; wherein a first of these ramp panels is pivotably mountable to a vehicle to form a tailgate adapted when in position on the vehicle to swing about an axis adjacent a lower longitudinal side of the first panel between a closed, vertical first position to a second, open ramp position;
(b) means to pivotably connect the ramp panels along adjacent longitudinal aides so as to unfold into an operable ramp position with the panels held in coplanar relationship when the first of the ramp panels is in open position, and fold into a storage position with the first of the ramp panels in closed position; and (c) means to releasably secure the ramp panels in first position.
(b) means to pivotably connect the ramp panels along adjacent longitudinal aides so as to unfold into an operable ramp position with the panels held in coplanar relationship when the first of the ramp panels is in open position, and fold into a storage position with the first of the ramp panels in closed position; and (c) means to releasably secure the ramp panels in first position.
2. The foldable vehicle tailgate ramp assembly of claim 1 wherein the corresponding longitudinal sides of adjacent panels are pivotably connected by means of a hinge assemblies each having means to limit the relative pivoting of corresponding panels in one direction to a position wherein the top surfaces are substantially coplanar.
3. The foldable vehicle tailgate ramp assembly of claim 2 wherein the hinge assembly comprises:
(a) a pair of spaced, aligned hinge sleeves respectively secured to different ones of corresponding longitudinal sides of adjacent panels and a rod rotatably secured within; and (b) a stop block secured to one of these longitudinal sides so as to abut against a surface bearing bar affixed to the other longitudinal side to retain the panels in a coplanar relationship when in ramp position.
(a) a pair of spaced, aligned hinge sleeves respectively secured to different ones of corresponding longitudinal sides of adjacent panels and a rod rotatably secured within; and (b) a stop block secured to one of these longitudinal sides so as to abut against a surface bearing bar affixed to the other longitudinal side to retain the panels in a coplanar relationship when in ramp position.
4. The foldable vehicle tailgate ramp assembly of claim 1 wherein latches are secured to the panels to releasably secure the panels in closed position.
5. The foldable vehicle tailgate ramp assembly of claim 4 wherein the latches comprise a pair of conventional latches secured to lateral sides of first panel to releasably secure the first of the ramp panels to the vehicle in vertical orientation when in closed position and a pair of spring-loaded latches secured to the lateral sides of another of the panels to releasably hold the ramp panels in storage position.
6. The foldable vehicle tailgate ramp assembly of claim 5 wherein each of the spring-loaded latches comprise a panel-gripping finger, moveable against the bias of the spring to releasably grip lateral sides of the other ramp panels to hold them in folded positions.
7. The foldable vehicle tailgate ramp assembly of claim 1 wherein a pair of telescopically adjustable vertical support members are affixed to the lateral sides of a central ramp panel to supportably engage a ground surface when the panels are into ramp position.
8. The foldable vehicle tailgate ramp assembly comprising:
(a) a plurality of rectangular ramp panels each having top and bottom surfaces and longitudinal and lateral sides; a first of said panels being pivotably mounted to the vehicle to form a tailgate and the others of said panels being pivotably connected to each other along adjacent longitudinal sides;
(b) a pair of hinge assemblies pivotably connecting the panels at adjacent longitudinal sides so that in operation the panels will unfold and fold between a first folded position wherein the top surfaces of consecutive panels opposedly face one another and a second open, ramp position wherein the top surfaces form a continuous planar ramp surface;
(c) a pair of adjustable legs hingedly connected to longitudinal sides of a central panel to provide support to the panels when in ramp position; and (d) latching means to releasably lock respectively the first panel to the vehicle as a tailgate and the other panels to the first panel when the panels are in folded position.
(a) a plurality of rectangular ramp panels each having top and bottom surfaces and longitudinal and lateral sides; a first of said panels being pivotably mounted to the vehicle to form a tailgate and the others of said panels being pivotably connected to each other along adjacent longitudinal sides;
(b) a pair of hinge assemblies pivotably connecting the panels at adjacent longitudinal sides so that in operation the panels will unfold and fold between a first folded position wherein the top surfaces of consecutive panels opposedly face one another and a second open, ramp position wherein the top surfaces form a continuous planar ramp surface;
(c) a pair of adjustable legs hingedly connected to longitudinal sides of a central panel to provide support to the panels when in ramp position; and (d) latching means to releasably lock respectively the first panel to the vehicle as a tailgate and the other panels to the first panel when the panels are in folded position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2028014 CA2028014A1 (en) | 1990-10-19 | 1990-10-19 | Ramp king with folding tailgate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2028014 CA2028014A1 (en) | 1990-10-19 | 1990-10-19 | Ramp king with folding tailgate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2028014A1 true CA2028014A1 (en) | 1992-04-20 |
Family
ID=4146193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2028014 Abandoned CA2028014A1 (en) | 1990-10-19 | 1990-10-19 | Ramp king with folding tailgate |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2028014A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287579A (en) * | 1992-09-29 | 1994-02-22 | Orestes Estevez, Jr | Loading and bridge ramp for pick-up trucks |
-
1990
- 1990-10-19 CA CA 2028014 patent/CA2028014A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5287579A (en) * | 1992-09-29 | 1994-02-22 | Orestes Estevez, Jr | Loading and bridge ramp for pick-up trucks |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |