TWI419021B - Dynamic Compensation Construction of Siamese Key in Computer Input Device - Google Patents
Dynamic Compensation Construction of Siamese Key in Computer Input Device Download PDFInfo
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- TWI419021B TWI419021B TW99122279A TW99122279A TWI419021B TW I419021 B TWI419021 B TW I419021B TW 99122279 A TW99122279 A TW 99122279A TW 99122279 A TW99122279 A TW 99122279A TW I419021 B TWI419021 B TW I419021B
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Description
本發明係關於一種電腦輸入裝置，尤指一種具有連體鍵的電腦輸入裝置，其連體鍵上設有一動態補償構造，藉以減少晃動、噪音的產生。The invention relates to a computer input device, in particular to a computer input device with a joint key, and a dynamic compensation structure is arranged on the joint key to reduce the occurrence of sway and noise.
按滑鼠、手寫板及軌跡球等是使用電腦常用的輸入裝置，儘管有許多科技新知、報導揭示了輸入裝置的虛擬化，令使用者單憑手勢即可執行輸入動作，但截至目前為止，虛擬的輸入裝置受限於技術、成本，仍未高度普及化，因此絕大多數的電腦使用者仍採用實體的輸入裝置，儘管如此，既有實體輸入裝置在相關技術的研發步調卻未曾停歇。Pressing the mouse, tablet, and trackball is a common input device for computers. Although there are many new technologies and reports that reveal the virtualization of the input device, the user can perform input actions with gestures alone, but so far, Virtual input devices are limited by technology and cost, and are still not highly popularized. Therefore, most computer users still use physical input devices. However, the physical input devices have not stopped during the development of related technologies.
以滑鼠為例，傳統滑鼠有所謂雙鍵式、三鍵式，甚至多軸式，而不論是雙鍵式或三鍵式，其構造類似，均是在滑鼠的上殼前端分設二個或三個可動的按鍵，當按鍵受壓時可觸動位於按鍵下方的微動開關而執行輸入動作。隨著電子相關商品開發兼顧科技與時尚的趨勢，前述滑鼠的形式出現了突破性的變化，例如取消滑鼠上殼前端的可動按鍵，取而代之的是令上殼構成一完整的單體，藉由對上殼的前後左右搖動，以產生不同的輸入動作，而該可搖動的上殼亦稱為連體鍵。Taking the mouse as an example, the traditional mouse has a so-called double-key type, a three-button type, or even a multi-axis type, and whether it is a double-key type or a three-button type, the structure is similar, and is divided into the front end of the upper shell of the mouse. Two or three movable buttons, when the button is pressed, can touch the micro switch located under the button to perform an input action. With the development of electronic related products taking into account the trend of technology and fashion, the aforementioned forms of the mouse have undergone breakthrough changes, such as canceling the movable button on the front end of the upper shell of the mouse, and replacing the upper shell with a complete unit. The front and rear sides of the upper shell are rocked to generate different input actions, and the rockable upper shell is also referred to as a joint key.
如圖5所示即為一具有連體鍵的滑鼠，就外觀而言，其前端的可動按鍵已被取消，其組成構造則如圖6所示，主要是在一底殼60內設有一電路模組70，該電路模組70至少在一電路板71的前端分設兩微動開關72,73；又底殼60上相對扣合有一中殼80，該中殼80前端分別形成有兩穿孔81,82，後端則形成有一通孔84，且中殼80於上表面的中央處形成一朝上突出的凸粒83，其中兩穿孔81,82係分別對應於電路板71前端的兩微動開關72,73；前述中殼80上表面進一步設有一上殼90，該上殼90係整個覆蓋在中殼80上，又上殼90底面前端處分別形成兩向下延伸的押條91，兩押條91分別穿過中殼80前端的穿孔81,82，而對應於電路模組70上的兩微動開關72,73，藉此在上殼90前端構成一連體鍵；再上殼90底面中央處係為中殼80上的凸粒83所頂持(如圖7所示)，以構成一支點；另上殼90底面後端形成有向下延伸的定位柱92，該定位柱92係呈中空管狀，其穿過中殼80後端的通孔84後在端部處螺設有一墊片85；其中，中殼80後端通孔84的孔徑略大於定位柱92的外徑，而在定位柱92***後形成有些許間隙，又定位柱92底端的墊片85又大於通孔84孔徑，且距離通孔84孔緣一微小距離。As shown in FIG. 5, it is a mouse with a joint key. In terms of appearance, the movable button at the front end has been canceled, and its composition is as shown in FIG. 6, which is mainly provided in a bottom case 60. The circuit module 70 is provided with at least two micro switches 72, 73 at the front end of the circuit board 71. The bottom case 60 is relatively fastened with a middle case 80. The front end of the middle case 80 is respectively formed with two perforations. 81, 82, a through hole 84 is formed in the rear end, and the middle case 80 forms an upwardly protruding convex piece 83 at the center of the upper surface, wherein the two through holes 81, 82 respectively correspond to the two micro movements of the front end of the circuit board 71. The upper surface of the upper casing 80 is further provided with an upper casing 90, the upper casing 90 is entirely covered on the middle casing 80, and the bottom end of the upper casing 90 is respectively formed with two downwardly extending strips 91, two The strips 91 respectively pass through the through holes 81, 82 at the front end of the middle case 80, and correspond to the two micro switches 72, 73 on the circuit module 70, thereby forming a conjoined key at the front end of the upper case 90; The central portion is held by the convex particles 83 on the middle casing 80 (as shown in FIG. 7) to form a fulcrum; the bottom surface of the upper casing 90 is formed with a downward end. The positioning post 92 is a hollow tubular shape, and passes through the through hole 84 at the rear end of the middle casing 80 to be screwed with a gasket 85 at the end; wherein, the aperture of the rear end hole 84 of the middle casing 80 Slightly larger than the outer diameter of the positioning post 92, a slight gap is formed after the positioning post 92 is inserted, and the spacer 85 at the bottom end of the positioning post 92 is larger than the aperture of the through hole 84 and a slight distance from the edge of the through hole 84.
在前述構造下，當使用者在上殼90的前端施壓以操作連體鍵時，上殼90以中殼80上的凸粒83為支點而前傾，相對使上殼90後端上拉，此時定位柱92及其底端的墊片85利用與通孔84之間隙，而提供上殼90後端有限的移動空間，藉此令上殼90在一穩定狀態下***作。In the foregoing configuration, when the user presses the front end of the upper case 90 to operate the conjoined key, the upper case 90 is tilted forward with the convex piece 83 on the middle case 80 as a fulcrum, and the rear end of the upper case 90 is pulled up. At this time, the positioning post 92 and the spacer 85 at the bottom end thereof utilize a gap with the through hole 84 to provide a limited moving space at the rear end of the upper casing 90, thereby allowing the upper casing 90 to be operated in a stable state.
但由於定位柱92與中殼80上的通孔84始終存在間隙，造成上殼90容易在中殼80上晃動，因而產生噪音，故如何在不影響上殼90正常操作的前提下，解決前述晃動、噪音問題，則有待進一步謀求可行的解決方案。However, since there is always a gap between the positioning post 92 and the through hole 84 in the middle case 80, the upper case 90 is easily shaken on the middle case 80, thereby generating noise, so how to solve the above without affecting the normal operation of the upper case 90 If there are sloshing and noise problems, it is necessary to further seek a feasible solution.
因此本發明主要目的在提供一種電腦輸入裝置之連體鍵動態補償構造，用以對其上殼產生一吸震減隙作用，而有效解決上殼動作時的晃動、噪音問題。Therefore, the main object of the present invention is to provide a joint key dynamic compensation structure of a computer input device for generating a shock absorption and backlash effect on the upper shell, and effectively solving the sloshing and noise problems during the upper shell movement.
為達成前述目的採取的主要技術手段係令前述電腦輸入裝置之連體鍵動態補償構造包括有：一底殼；一中殼，係相對蓋合於前述底殼上，該中殼具有一前端及一後端，其後端形成有一通孔，該通孔具有一孔壁；一上殼，係位於前述中殼上方，該上殼具有一前端及一後端，其後端的內底面上形成有一定位柱，定位柱係對應穿置於中殼後端的通孔內；一彈性牽引組件，係設於上殼上定位柱的底端，並抵掣於中殼後端通孔的孔壁底緣；當上殼不動作的一般狀態下，前述彈性牽引組件將對定位柱產生一向下牽引的拉力，藉此上殼後端將儘量貼向中殼後端表面，而有效減少間隙，進而避免晃動及噪音；當使用者操作上殼而使其後端的定位柱上移時，定位柱上的彈性牽引組件將被壓縮，藉此令上殼在一穩定狀態下***作。The main technical means for achieving the foregoing purpose is that the dynamic key compensation structure of the computer input device comprises: a bottom case; a middle case is oppositely attached to the bottom case, the middle case has a front end and a rear end having a through hole formed at the rear end thereof, the through hole having a hole wall; an upper case being located above the middle case, the upper case having a front end and a rear end, and a rear end is formed on the inner bottom surface thereof a positioning post, the positioning post is correspondingly disposed in the through hole at the rear end of the middle shell; an elastic traction component is disposed on the bottom end of the positioning post on the upper shell, and is opposite to the bottom edge of the hole wall of the rear end of the middle shell In the general state in which the upper casing does not move, the elastic traction assembly will generate a downward pulling force on the positioning post, whereby the rear end of the upper shell will be attached to the rear end surface of the middle shell as much as possible, thereby effectively reducing the gap and avoiding shaking. And noise; when the user operates the upper casing and moves the positioning post at the rear end thereof, the elastic traction assembly on the positioning post will be compressed, thereby allowing the upper casing to be operated in a stable state.
再者，前述中殼表面的中央處設有一彈性支持件，以相對頂持於上殼的底面中央處，藉此構成一彈性支點；一旦使用者操作上殼以執行連體鍵時，該彈性支持件除可產生一槓桿的支點作用外，亦具有緩衝減震的作用，可進一步避免晃動及噪音。Furthermore, an elastic support member is disposed at the center of the surface of the middle casing to be oppositely held at the center of the bottom surface of the upper casing, thereby forming an elastic fulcrum; the elasticity is formed once the user operates the upper casing to perform the joint key. In addition to the fulcrum function of a lever, the support member also has the function of cushioning and damping, which can further avoid sloshing and noise.
關於本發明之一較佳實施例，首先請參閱圖1、圖2所示，包括有：一底殼10，其為一平板體，在接近邊緣處環設有一圍牆11，而在圍牆11內形成一容置空間，本實施例中，該容置空間上設有一電路模組40，該電路模組40至少在一電路板41的前端分設兩微動開關42,43；又前述圍牆11的外側壁上形成有多個勾扣12,13；一中殼20，係一具備向下開口的中空殼體，其開口與底殼10的圍牆11匹配，以便相對蓋合於底殼10上；又中殼20具有一前端及一後端，其前端上形成有兩穿孔21,22，後端則形成有一通孔23，其中兩穿孔21,22係分別對應於前述電路板41前端的兩微動開關42,43；又請配合參閱圖2所示，中殼20後端的通孔23具有一孔壁230，孔壁230配合通孔23的孔深而具有匹配的厚度；再者，中殼20在其頂面的周邊位置形成有多個扣槽24,25，該等扣槽24,25分別對應於底殼10圍牆11外的勾扣12,13，以便相互扣合；一上殼30，亦為一具備向下開口中空殼體，其相對蓋合於前述中殼20上，又上殼30具有一前端及一後端，其前端底面處分別形成兩向下延伸的押條31，兩押條31分別穿過中殼20前端的穿孔21,22，而對應於電路模組40上的兩微動開關42,43，藉此在上殼30前端構成一連體鍵；前述內容就連體鍵、電路模組40的形式及連體鍵與電路模組40上所設微動開關42,43的相對關係，僅在揭示一可行實施例而已，並非用以限定其技術，合先陳明；另上殼30後端底面形成有向下延伸的定位柱32，該定位柱32係呈中空管狀，其外徑略小於中殼20後端的通孔23孔徑，並穿置其間；一彈性牽引組件50，係設於上殼30的定位柱32底端，並抵掣於中殼20後端通孔23的孔壁230底緣，以賦予一向下牽引的彈性拉力；本實施例中，該彈性牽引組件50包括一彈簧51及一螺桿52，其中，彈簧51的簧圈內徑大於定位柱32，適可套設於該定位柱32上，又彈簧51的簧圈外徑大於通孔23孔徑，因此彈簧51上端將頂掣在中殼20後端通孔23的孔壁230底緣；又螺桿52的頭部恆大於彈簧51的簧圈外徑，令彈簧51下端適可抵掣在螺桿52的頭部上，該螺桿52係由上殼30下方螺入上殼30的定位柱32內，並適度的壓縮套設於定位柱32上的彈簧51(請配合參閱圖3所示)，藉此使彈簧51對上殼30的定位柱32產生一向下牽引的彈性拉力，在前述彈性拉力的牽引下，上殼30後端將儘量地貼在中殼20後端表面以減少其間的空隙，避免晃動及噪音的產生。又請參閱圖4所示，一旦上殼30前端的連體鍵受壓時，上殼30後端的定位柱32仍在彈簧51的牽引下上移，並相對壓縮彈簧51，藉此操作連體鍵時仍受彈性牽引組件50影響，以避免晃動與噪音產生。對於所屬技術領域具有通常知識者可以理解的是：前述的彈簧51可為其他彈性元件所取代，例如橡膠塊及其他具備彈性惟不同材質的元件。Referring to a preferred embodiment of the present invention, first, referring to FIG. 1 and FIG. 2, there is included a bottom case 10 which is a flat body, and a wall 11 is disposed near the edge, and is in the fence 11. An accommodating space is formed. In this embodiment, a circuit module 40 is disposed on the accommodating space. The circuit module 40 is provided with at least two micro switches 42 and 43 at a front end of the circuit board 41. A plurality of hooks 12, 13 are formed on the outer side wall; a middle shell 20 is provided with a hollow shell that is open downward, and the opening is matched with the wall 11 of the bottom shell 10 so as to be oppositely covered on the bottom shell 10. The middle case 20 has a front end and a rear end, and two through holes 21, 22 are formed at the front end thereof, and a through hole 23 is formed at the rear end, wherein the two through holes 21, 22 respectively correspond to the front ends of the circuit board 41. The micro switch 42 and 43; as shown in FIG. 2, the through hole 23 at the rear end of the middle case 20 has a hole wall 230, and the hole wall 230 matches the hole depth of the through hole 23 to have a matching thickness; 20 is formed with a plurality of buckle grooves 24, 25 at a peripheral position of the top surface thereof, and the buckle grooves 24, 25 respectively correspond to the hooks outside the wall 11 of the bottom case 10. 12, 13 so as to be fastened to each other; an upper casing 30, also having a downwardly opening hollow casing, which is oppositely attached to the middle casing 20, and the upper casing 30 has a front end and a rear end, Two downwardly extending strips 31 are formed at the bottom surface of the front end, and the two strips 31 respectively pass through the through holes 21, 22 at the front end of the middle shell 20, and correspond to the two micro switches 42 and 43 on the circuit module 40, thereby The front end of the upper casing 30 constitutes a conjoined key; the foregoing relates to the relative relationship between the body key, the form of the circuit module 40 and the interlocking keys and the micro switches 42 and 43 provided on the circuit module 40, only revealing a feasible implementation. For example, the structure of the rear end of the upper casing 30 is formed with a downwardly extending positioning post 32. The positioning post 32 is hollow tubular and has an outer diameter slightly smaller than that of the middle casing 20. The through hole 23 of the end has an aperture and is interposed therebetween; an elastic traction assembly 50 is disposed at the bottom end of the positioning post 32 of the upper casing 30 and abuts against the bottom edge of the hole wall 230 of the rear end through hole 23 of the middle casing 20, The elastic pulling assembly 50 includes a spring 51 and a screw 52, wherein The inner diameter of the coil of the spring 51 is larger than that of the positioning post 32, and the outer diameter of the coil of the spring 51 is larger than the diameter of the through hole 23. Therefore, the upper end of the spring 51 will be topped at the rear end of the middle casing 20. The bottom edge of the hole wall 230 of the through hole 23; and the head of the screw 52 is always larger than the outer diameter of the coil of the spring 51, so that the lower end of the spring 51 is adapted to abut against the head of the screw 52, which is composed of the upper casing 30. The lower portion is screwed into the positioning post 32 of the upper casing 30, and moderately compresses the spring 51 sleeved on the positioning post 32 (please refer to FIG. 3), thereby causing the spring 51 to generate the positioning post 32 of the upper casing 30. A downward pulling elastic pulling force, under the pulling of the elastic pulling force, the rear end of the upper casing 30 will be attached to the rear end surface of the middle casing 20 as much as possible to reduce the gap therebetween, thereby avoiding the occurrence of sway and noise. Referring to FIG. 4, once the conjoined key at the front end of the upper casing 30 is pressed, the positioning post 32 at the rear end of the upper casing 30 is still moved up by the spring 51, and the spring 51 is relatively compressed, thereby operating the joint. The key is still affected by the elastic traction assembly 50 to avoid sloshing and noise generation. It will be understood by those of ordinary skill in the art that the aforementioned springs 51 can be replaced by other elastic elements, such as rubber blocks and other elements having elastic and different materials.
由上述可知，本發明主要針對作為連體鍵的上殼30提供一彈性牽引組件50，以達到減少晃動與噪音的目的；除此以外，本發明進一步在中殼20上設有一相對於上殼30的彈性支點，以增進一避震減隙作用；其具體實現的技術，請參閱圖1、圖3所示，主要係在中殼20表面的中央處形成有一凹穴26，該凹穴26內設有一彈性支持件27，本實施例中，該彈性支持件27為一彈簧，惟彈簧外，不排除其他具備相同物理特性的彈性元件。又彈性支持件27的頂端係頂持於上殼30底面的中央處，藉以構成一彈性支點，當使用者在上殼30的前端施力時，該彈性支持件27除構成一支點，使上殼30呈現槓桿般動作外，彈性支持件27同時具備緩衝與避震作用，使上殼30動作過程中得以進一步避免晃動與噪音產生。It can be seen from the above that the present invention mainly provides an elastic traction assembly 50 for the upper casing 30 as a joint key for the purpose of reducing sway and noise; in addition, the present invention further provides a middle casing 20 with respect to the upper casing. The elastic fulcrum of 30 is used to enhance a shock-absorbing and seeping function; the specific implementation technique is as shown in FIG. 1 and FIG. 3, and a recess 26 is formed at the center of the surface of the middle shell 20, and the recess 26 is formed. An elastic support member 27 is disposed in the embodiment. In this embodiment, the elastic support member 27 is a spring. Except for the spring, other elastic members having the same physical characteristics are not excluded. The top end of the elastic support member 27 is held at the center of the bottom surface of the upper casing 30 to form an elastic fulcrum. When the user applies a force to the front end of the upper casing 30, the elastic support member 27 constitutes a fulcrum. The shell 30 exhibits a lever-like action, and the elastic support member 27 has both a cushioning and a shock absorbing function, so that the upper shell 30 can be further prevented from swaying and noise during the operation.
10．．．底殼10. . . Bottom shell
11．．．圍牆11. . . Fence
12,13．．．勾扣12,13. . . Hook
20．．．中殼20. . . Middle shell
21,22．．．穿孔21,22. . . perforation
23．．．通孔twenty three. . . Through hole
230．．．孔壁230. . . hole wall
24,25．．．扣槽24,25. . . Buckle
26．．．凹穴26. . . Pocket
27．．．彈性支持件27. . . Elastic support
30．．．上殼30. . . Upper shell
31．．．押條31. . . Stick
32．．．定位柱32. . . Positioning column
40．．．電路模組40. . . Circuit module
41．．．電路板41. . . Circuit board
42,43．．．微動開關42,43. . . Micro Switch
50．．．彈性牽引組件50. . . Elastic traction assembly
51．．．彈簧51. . . spring
52．．．螺桿52. . . Screw
60．．．底殼60. . . Bottom shell
70．．．電路模組70. . . Circuit module
71．．．電路板71. . . Circuit board
72,73．．．微動開關72,73. . . Micro Switch
80．．．中殼80. . . Middle shell
81,82．．．穿孔81,82. . . perforation
83．．．凸粒83. . . Bulge
84．．．通孔84. . . Through hole
85．．．墊片85. . . Gasket
90．．．上殼90. . . Upper shell
91．．．押條91. . . Stick
92．．．定位柱92. . . Positioning column
圖1係本發明一較佳實施例的分解圖。1 is an exploded view of a preferred embodiment of the present invention.
圖2係本發明一較佳實施例的局部放大剖視圖。Figure 2 is a partially enlarged cross-sectional view showing a preferred embodiment of the present invention.
圖3係本發明一較佳實施例的剖視圖。Figure 3 is a cross-sectional view of a preferred embodiment of the present invention.
圖4係本發明一較佳實施例的剖視暨動作示意圖。4 is a cross-sectional view and a schematic view of a preferred embodiment of the present invention.
圖5係既有具連體鍵電腦輸入裝置的立體圖。Figure 5 is a perspective view of a computer input device having a conjoined key.
圖6係既有具連體鍵電腦輸入裝置的分解圖。Figure 6 is an exploded view of a computer input device having a conjoined key.
圖7係既有具連體鍵電腦輸入裝置的剖視圖。Figure 7 is a cross-sectional view of a computer input device having a conjoined key.
10．．．底殼10. . . Bottom shell
20．．．中殼20. . . Middle shell
23．．．通孔twenty three. . . Through hole
230．．．孔壁230. . . hole wall
30．．．上殼30. . . Upper shell
32．．．定位柱32. . . Positioning column
41．．．電路板41. . . Circuit board
50．．．彈性牽引組件50. . . Elastic traction assembly
51．．．彈簧51. . . spring
52．．．螺桿52. . . Screw
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99122279A TWI419021B (en) | 2010-07-07 | 2010-07-07 | Dynamic Compensation Construction of Siamese Key in Computer Input Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW99122279A TWI419021B (en) | 2010-07-07 | 2010-07-07 | Dynamic Compensation Construction of Siamese Key in Computer Input Device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201203021A TW201203021A (en) | 2012-01-16 |
| TWI419021B true TWI419021B (en) | 2013-12-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW99122279A TWI419021B (en) | 2010-07-07 | 2010-07-07 | Dynamic Compensation Construction of Siamese Key in Computer Input Device |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI419021B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI576685B (en) * | 2015-12-31 | 2017-04-01 | 東莞寶德電子有限公司 | Mouse device with a preprestress regulating structure |
| TWI725021B (en) * | 2015-04-07 | 2021-04-21 | 新加坡商雷蛇（亞太）私人有限公司 | Input devices |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110757A1 (en) * | 2003-10-19 | 2005-05-26 | Shu-Feng Lu | Third axis input device for mouse |
| US20060274042A1 (en) * | 2005-06-03 | 2006-12-07 | Apple Computer, Inc. | Mouse with improved input mechanisms |
| TWM379113U (en) * | 2009-06-26 | 2010-04-21 | Koegler Bruno | Mouse structure |
-
2010
- 2010-07-07 TW TW99122279A patent/TWI419021B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050110757A1 (en) * | 2003-10-19 | 2005-05-26 | Shu-Feng Lu | Third axis input device for mouse |
| US20060274042A1 (en) * | 2005-06-03 | 2006-12-07 | Apple Computer, Inc. | Mouse with improved input mechanisms |
| TWM379113U (en) * | 2009-06-26 | 2010-04-21 | Koegler Bruno | Mouse structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI725021B (en) * | 2015-04-07 | 2021-04-21 | 新加坡商雷蛇（亞太）私人有限公司 | Input devices |
| TWI576685B (en) * | 2015-12-31 | 2017-04-01 | 東莞寶德電子有限公司 | Mouse device with a preprestress regulating structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201203021A (en) | 2012-01-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Annulment or lapse of patent due to non-payment of fees |