CN107676673A - A kind of novel LED bulb lamp - Google Patents
A kind of novel LED bulb lamp Download PDFInfo
- Publication number
- CN107676673A CN107676673A CN201710885266.2A CN201710885266A CN107676673A CN 107676673 A CN107676673 A CN 107676673A CN 201710885266 A CN201710885266 A CN 201710885266A CN 107676673 A CN107676673 A CN 107676673A
- Authority
- CN
- China
- Prior art keywords
- lamp
- socket
- base
- led bulb
- novel led
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
- F21S8/033—Lighting devices intended for fixed installation of surface-mounted type the surface being a wall or like vertical structure, e.g. building facade
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/002—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips making direct electrical contact, e.g. by piercing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/54—Cooling arrangements using thermoelectric means, e.g. Peltier elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
- F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
- F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/76—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical parallel planar fins or blades, e.g. with comb-like cross-section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a kind of novel LED bulb lamp, including base, lampshade, circuit board, LED lamp bead, wind deflector, radiating fin, heat emission hole, ventilation duct, conduction cooling pipe, blower fan, semiconductor chilling plate, cool guide sheet, anti-dust filter mesh, fin, fixed plate, cover plate, screw socket, connection shell, the first internal thread, fixed seat, lamp socket, the second internal thread, external screw thread and fixing bolt.This kind of LED lamp bulb structure is reasonable, novel in design, it is threadedly coupled by the connection shell of setting with lamp socket, the screw socket being threadedly coupled with lamp socket is further sealed, reduce the screw socket exposure with oxygen in air in use, effectively reduce the situation of getting rusty of screw socket, there is provided temperature relatively low air by the semiconductor chilling plate of setting, the relatively low air of temperature is delivered in base by blower fan, and the heat in base is discharged by heat emission hole, the effective normal use for ensureing LEDbulb lamp, extend the service life of LEDbulb lamp.
Description
Technical field
The present invention relates to LEDbulb lamp, specially a kind of novel LED bulb lamp, belong to LED illumination applied technical field.
Background technology
LEDbulb lamp is that outward appearance uses the bulb shapes that people have been accustomed to be spherical, and internal light source selection is LED core
Piece；LEDbulb lamp is to substitute the Novel energy-saving lamp of conventional incandescent bulb；It is gradual with the high speed development LED illumination of LED technology
As the only choosing of novel green illumination；LED principle of luminosity, energy-saving and environmental protection aspect on all be far superior to traditional lighting
Product.
Occur number of types of LEDbulb lamp in the market, got rusty easily in LEDbulb lamp using middle screw socket,
Cause lamp connection unstable, influence illuminating effect, and in existing lamp in use, the radiating effect of LEDbulb lamp in itself is not
It is highly desirable, for a long time using temperature in lamp can be caused to rise, greatly reduce the service life of lamp.Therefore, asked for above-mentioned
Topic proposes a kind of novel LED bulb lamp.
The content of the invention
The purpose of the present invention is that to solve the above problems and provides a kind of novel LED bulb lamp.
The present invention be achieved through the following technical solutions above-mentioned purpose, a kind of novel LED bulb lamp, including base and with
The lampshade that base is connected together, the base bottom nailed circuit plate；The circuit board lower surface connects LED lamp bead,
And circuit board top surface is fixedly connected with radiating fin；Both ends are fixedly connected with wind deflector at the top of the circuit board；The base side
Surface offers heat emission hole, and corresponding base opposite side is fixedly connected with ventilation duct；In described ventilation duct one end be provided with
The blower fan that fixed plate is fixedly connected, and fixed plate is fixedly connected with cover plate；The middle of the base surface is connected together with cover plate；Institute
State cover plate and ventilation duct is communicated to by conduction cooling pipe, and conduction cooling pipe is provided with anti-dust filter mesh through one end of cover plate；The conduction cooling pipe
It is interior to be provided with semiconductor chilling plate, and semiconductor chilling plate is provided with cool guide sheet close to the side of ventilation duct；The semiconductor chilling plate
Side away from ventilation duct is provided with fin；The lamp socket end connects screw socket, and lamp socket end surface socket connection shell；
The screw socket is threadedly coupled with lamp socket；The lamp socket is fixedly connected with fixed seat, and fixed seat is provided with fixing bolt.
Preferably, the radiating fin number is several, and radiating fin is evenly distributed on the circuit board surface.
Preferably, the wind deflector number is two, and wind deflector outer surface is in arc-shaped structure.
Preferably, the ventilation duct is connected through the base side wall with the wind deflector being provided with base.
Preferably, the cross section of the connection shell is in fluted body structure.
Preferably, the second screw thread that the lamp socket is provided with by inner surface is threadedly coupled with screw socket, and lamp socket passes through
The external screw thread that outer surface is provided with is threadedly coupled with being connected the first internal thread that shell inner surface is provided with.
The beneficial effects of the invention are as follows：This kind of LED lamp bulb structure rationally, it is novel in design, by the connection shell of setting with
Lamp socket is threadedly coupled, and the screw socket being threadedly coupled with lamp socket is further sealed, and reduces screw socket in use and air
The exposure of middle oxygen, effectively reduce the situation of getting rusty of screw socket, by the semiconductor chilling plate of setting provide temperature compared with
Low air, the relatively low air of temperature is delivered in base by blower fan, and discharged the heat in base by heat emission hole, had
The normal use of the guarantee LEDbulb lamp of effect, the service life of LEDbulb lamp is extended, there is good market value, be adapted to
Promote the use of.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is partial enlargement structural representation at A in Fig. 1 of the present invention.
In figure：1st, base, 2, lampshade, 3, circuit board, 4, LED lamp bead, 5, wind deflector, 6, radiating fin, 7, heat emission hole, 8, logical
Airduct, 9, conduction cooling pipe, 10, blower fan, 11, semiconductor chilling plate, 12, cool guide sheet, 13, anti-dust filter mesh, 14, fin, 15, solid
Fixed board, 16, cover plate, 17, screw socket, 18, connection shell, the 1801, first internal thread, 19, fixed seat, 20, lamp socket, 2001, the
Two internal threads, 2002, external screw thread, 21, fixing bolt.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Refer to shown in Fig. 1-2, a kind of novel LED bulb lamp, including base 1 and the lampshade that is connected together with base 1
2, the bottom nailed circuit plate 3 of base 1；The lower surface of circuit board 3 connects LED lamp bead 4, and the top of circuit board 3
Surface is fixedly connected with radiating fin 6, and the radiating fin 6 of setting is easy to radiate；The top both ends of circuit board 3 are fixedly connected with wind deflector 5,
The wind deflector 5 of setting ensures that air flow is smooth, accelerates radiating；The side surface of base 1 one offers heat emission hole 7, and and its
The corresponding opposite side of base 1 is fixedly connected with ventilation duct 8；The wind being fixedly connected with fixed plate 15 is provided with described one end of ventilation duct 8
Machine 10 accelerates the flowing of air, is easy to heat to discharge, and fixed plate 15 is fixedly connected with cover plate 16；The middle part surface of base 1
It is connected together with cover plate 16, the cover plate 16 of setting avoids the dust in air from entering in LEDbulb lamp, influences to use；The lid
Plate 16 is communicated to ventilation duct 8 by conduction cooling pipe 9, and conduction cooling pipe 9 is provided with anti-dust filter mesh 13 through one end of cover plate 16, and filtering is empty
Gas, dust is avoided to enter；Semiconductor chilling plate 11 is provided with the conduction cooling pipe 9, and semiconductor chilling plate 11 is close to ventilation duct 8
Side is provided with cool guide sheet 12；The side of the semiconductor chilling plate 11 away from ventilation duct 8 is provided with fin 14；The end of lamp socket 20
End connection screw socket 17, and the end surface of lamp socket 20 socket connection shell 18, improve the sealing to screw socket 17, reduce screw socket
The exposure of lamp holder 17 and oxygen in air, reduction are got rusty；The screw socket 17 is threadedly coupled with lamp socket 20；The lamp socket 20
It is fixedly connected with fixed seat 19, and fixed seat 19 is provided with fixing bolt 21, is easy to stablize fixation.
As a kind of technical optimization scheme of the present invention, the number of radiating fin 14 is several, and radiating fin 14 is uniform
The surface of circuit board 3 is distributed in, is easy to effectively radiate.
As a kind of technical optimization scheme of the present invention, the number of wind deflector 5 is two, and the outer surface of wind deflector 5 is in
Arc-shaped structure, ensure that air flow is smooth, accelerate radiating.
As a kind of technical optimization scheme of the present invention, the ventilation duct 8 is through the side wall of base 1 with being set in base 1
Some wind deflectors 5 connect, and ensure that structure connection is compact.
As a kind of technical optimization scheme of the present invention, the cross section of the connection shell 18 is in fluted body structure, is easy to connect
Body contact 18 is connected with lamp socket 20.
As a kind of technical optimization scheme of the present invention, the lamp socket 20 by the second screw thread 2001 that inner surface is provided with
Screw socket 17 is threadedly coupled, and the external screw thread 2002 that is provided with by outer surface of lamp socket 20 be provided with being connected the inner surface of shell 18
One internal thread 1801 is threadedly coupled, and ensures stable connection, reduces screw socket 17 and oxygen exposure in air, and reduction is got rusty,
Increase the service life.
In the use of the present invention, fixed seat 19 is fixed on the wall by fixing bolt 21, by screw socket 17 and lamp
Second internal thread 2001 of 20 inner surfaces of seat is threadedly coupled, and is connected shell 18 and passed through the first internal thread 1801 and the outer surface of lamp socket 20
External screw thread 2002 be threadedly coupled, ensure that LEDbulb lamp installation is stable, during the use of LEDbulb lamp, LED lamp bead 4 is grown
Time service produces heat, is connected by external 220V electricity with semiconductor chilling plate 11, the galvanic couple of semiconductor chilling plate 11 absorbs heat
Measure one end connection cool guide sheet 12, reduce the air themperature around cool guide sheet 12, by blower fan 10 by the relatively low air of temperature
Entered by ventilation duct 8 inside base 1, the heat on the surface of radiating fin 6 is discharged by the heat emission hole 7 of base side, by leading
Aerofoil 5 ensures that air flow is smooth, accelerates radiating, and the exothermic one end of the galvanic couple of semiconductor chilling plate 11 connects fin
14, heat is discharged by heat emission hole 7, so as to ensure that LEDbulb lamp preferably uses.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (6)
1. a kind of novel LED bulb lamp, including base（1）And and base（1）The lampshade being connected together（2）, it is characterised in that：
The base（1）Bottom nailed circuit plate（3）；The circuit board（3）Lower surface connects LED lamp bead（4）, and circuit board
（3）Top surface is fixedly connected with radiating fin（6）；The circuit board（3）Top both ends are fixedly connected with wind deflector（5）；The base
（1）One side surface offers heat emission hole（7）, and corresponding base（1）Opposite side is fixedly connected with ventilation duct（8）；It is described logical
Airduct（8）It is provided with one end and fixed plate（15）The blower fan being fixedly connected（10）, and fixed plate（15）With cover plate（16）It is fixed to connect
Connect；The base（1）Middle part surface and cover plate（16）It is connected together；The cover plate（16）Pass through conduction cooling pipe（9）It is communicated to ventilation
Pipe（8）, and conduction cooling pipe（9）Through cover plate（16）One end be provided with anti-dust filter mesh（13）；The conduction cooling pipe（9）Interior be provided with partly is led
Body cooling piece（11）, and semiconductor chilling plate（11）Close to ventilation duct（8）Side be provided with cool guide sheet（12）；The semiconductor system
Cold（11）Away from ventilation duct（8）Side be provided with fin（14）；The lamp socket（20）End connects screw socket（17）, and
Lamp socket（20）End surface socket connection shell（18）；The screw socket（17）With lamp socket（20）Threaded connection；The lamp socket
（20）With fixed seat（19）It is fixedly connected, and fixed seat（19）It is provided with fixing bolt（21）.
A kind of 2. novel LED bulb lamp according to claim 1, it is characterised in that：The radiating fin（14）If number is
Dry, and radiating fin（14）It is evenly distributed on the circuit board（3）Surface.
A kind of 3. novel LED bulb lamp according to claim 1, it is characterised in that：The wind deflector（5）Number is two
It is individual, and wind deflector（5）Outer surface is in arc-shaped structure.
A kind of 4. novel LED bulb lamp according to claim 1, it is characterised in that：The ventilation duct（8）Through the bottom
Seat（1）Side wall and base（1）The wind deflector being inside provided with（5）Connection.
A kind of 5. novel LED bulb lamp according to claim 1, it is characterised in that：The connection shell（18）Cross section
In fluted body structure.
A kind of 6. novel LED bulb lamp according to claim 1, it is characterised in that：The lamp socket（20）Pass through inner surface
The second screw thread being provided with（2001）With screw socket（17）Threaded connection, and lamp socket（20）The external screw thread being provided with by outer surface
（2002）With being connected shell（18）The first internal thread that inner surface is provided with（1801）Threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710885266.2A CN107676673A (en) | 2017-09-26 | 2017-09-26 | A kind of novel LED bulb lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710885266.2A CN107676673A (en) | 2017-09-26 | 2017-09-26 | A kind of novel LED bulb lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107676673A true CN107676673A (en) | 2018-02-09 |
Family
ID=61136276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710885266.2A Withdrawn CN107676673A (en) | 2017-09-26 | 2017-09-26 | A kind of novel LED bulb lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676673A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109587940A (en) * | 2019-01-23 | 2019-04-05 | 刘昊 | A kind of high heat radiating metal aluminum-based copper-clad plate |
| CN111351015A (en) * | 2018-12-20 | 2020-06-30 | 漳浦县中诺新能源科技有限公司 | Heat dissipation device of LED lamp |
| CN111810854A (en) * | 2019-04-11 | 2020-10-23 | 克莱特(上海)国际贸易有限公司 | Independently replaceable lamp cup |
| CN113566129A (en) * | 2021-08-09 | 2021-10-29 | 湖南和平光电科技有限公司 | LED fluorescent tube with water conservancy diversion ventilation structure |
| CN115978488A (en) * | 2022-10-25 | 2023-04-18 | 海宁市明帅照明科技有限公司 | LED bulb lamp |
-
2017
- 2017-09-26 CN CN201710885266.2A patent/CN107676673A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111351015A (en) * | 2018-12-20 | 2020-06-30 | 漳浦县中诺新能源科技有限公司 | Heat dissipation device of LED lamp |
| CN109587940A (en) * | 2019-01-23 | 2019-04-05 | 刘昊 | A kind of high heat radiating metal aluminum-based copper-clad plate |
| CN109587940B (en) * | 2019-01-23 | 2021-08-17 | 江西倍韬新材料科技有限公司 | High-heat-dissipation aluminum-based copper-clad plate |
| CN111810854A (en) * | 2019-04-11 | 2020-10-23 | 克莱特(上海)国际贸易有限公司 | Independently replaceable lamp cup |
| CN113566129A (en) * | 2021-08-09 | 2021-10-29 | 湖南和平光电科技有限公司 | LED fluorescent tube with water conservancy diversion ventilation structure |
| CN115978488A (en) * | 2022-10-25 | 2023-04-18 | 海宁市明帅照明科技有限公司 | LED bulb lamp |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180209 |
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| WW01 | Invention patent application withdrawn after publication |