JPH04331410A - Structure of small-sized case with locking mechanism - Google Patents
Structure of small-sized case with locking mechanismInfo
- Publication number
- JPH04331410A JPH04331410A JP3100077A JP10007791A JPH04331410A JP H04331410 A JPH04331410 A JP H04331410A JP 3100077 A JP3100077 A JP 3100077A JP 10007791 A JP10007791 A JP 10007791A JP H04331410 A JPH04331410 A JP H04331410A
- Authority
- JP
- Japan
- Prior art keywords
- hole
- base
- movable member
- cover
- square hole
- 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- Withdrawn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
- 210000000078 claw Anatomy 0.000 claims description 22
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical group C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Connection Or Junction Boxes (AREA)
- Closures For Containers (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、電話線の中継装置等に
使用される通信機器を収納するのに好適なロック機構付
き小型ケースに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small case with a locking mechanism suitable for housing communication equipment used in telephone line repeaters and the like.
【0002】0002
【従来の技術】電話加入者線の中継装置20は、図6に
示すように、電子回路部品21を実装したプリント基板
22をベース23に取付け、これに箱型のカバー24を
上から嵌挿して密閉して構成され、ねじ25によって家
屋の壁等に固定される。こうした装置20は、保安上の
観点から第三者によってカバー24が開放できないよう
に、カバー24の下縁とベース23とに設けられた孔を
通じてリング26を通すことによって、ロックされてい
る。2. Description of the Related Art As shown in FIG. 6, a telephone subscriber line relay device 20 has a printed circuit board 22 mounted with an electronic circuit component 21 mounted on a base 23, and a box-shaped cover 24 inserted into the base 23 from above. It is constructed in a sealed manner and is fixed to the wall of a house or the like with screws 25. Such a device 20 is locked by passing a ring 26 through a hole provided in the lower edge of the cover 24 and the base 23 so that the cover 24 cannot be opened by a third party for security reasons.
【0003】0003
【発明が解決しようとする課題】従って、保守等のため
に、ケース内部のプリント基板22にアクセスする必要
がある場合には、ロックしてあるリング26を切断して
からカバー24を開け、作業終了後に再び新しいリング
によるロックを行わなければならず、手間を要していた
。[Problems to be Solved by the Invention] Therefore, when it is necessary to access the printed circuit board 22 inside the case for maintenance or the like, it is necessary to cut the locking ring 26 and then open the cover 24 and perform the work. After the process is completed, the lock must be re-locked with a new ring, which is time-consuming.
【0004】本発明は、こうした従来技術の問題点を解
決し、ロック及びその解除が容易な小型通信機器用ケー
スの構造を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the prior art and to provide a structure for a case for a small communication device that can be easily locked and unlocked.
【0005】[0005]
【課題を解決するための手段】この目的は、ベースと、
これに装着されてベースとカバー内壁との間に密閉空間
を形成する箱型カバーとからなる小型ケースであって、
ベースの両側面には所定の深さの横方向の角孔が設けら
れ、該角孔にはこれに摺動自在に嵌合する可動部材が収
容され、該可動部材の先端は、装着される際の前記カバ
ーの挿入方向から見て下流側が上流側より前方に張り出
した傾斜面を有する爪を形成し、前記可動部材は、無負
荷状態において前記爪が前記角孔の出口から僅かに突出
した位置を占めるように、前記角孔の奥に設置されたス
プリングによって弾発的に支持され;前記カバーの両側
面の内壁には、該カバーがベースに装着された場合に前
記可動部材の爪と係合可能な凹部が設けられ;更に、前
記ベースには前記角孔を上下に貫通しベースの下面に開
口を有する係止孔が設けられ、一方、前記可動部材には
胴部を上下に横断する下方の開いた漏斗孔が設けられ;
前記係止孔と漏斗孔との位置関係は、前記可動部材の爪
の先端が前記角孔内に完全に引っ込んだ状態では、前記
係止孔と漏斗孔との中心線同士は完全に一致して係止孔
の上下部分は漏斗孔を介して連通し、爪が外に突出して
いる状態では、前記係止孔の前記角孔より下方の部分は
前記漏斗孔のテーパー部分と一致するが、角孔より上方
の部分は一致しないようになっており;更に、別に、前
記ベースの下面の開口を通じて前記係止孔に挿入可能な
ロック解除用ピンを具えたことを特徴とするロック機構
付きの小型ケースの構造によって達成される。[Means for solving the problem] This purpose is based on
A small case consisting of a box-shaped cover that is attached to the base and forms a sealed space between the base and the inner wall of the cover,
A horizontal square hole with a predetermined depth is provided on both sides of the base, and a movable member that is slidably fitted into the square hole is accommodated, and the tip of the movable member is attached to the square hole. When viewed from the insertion direction of the cover, the downstream side thereof forms a claw having an inclined surface projecting forward from the upstream side, and the movable member has a claw that slightly protrudes from the outlet of the square hole in an unloaded state. The cover is elastically supported by a spring installed at the back of the square hole so that the cover occupies the same position; Further, the base is provided with a locking hole that vertically passes through the square hole and has an opening on the bottom surface of the base, while the movable member has a locking hole that vertically traverses the body. a lower open funnel hole is provided;
The positional relationship between the locking hole and the funnel hole is such that when the tip of the claw of the movable member is completely retracted into the square hole, the center lines of the locking hole and the funnel hole are completely aligned with each other. The upper and lower portions of the locking hole communicate through the funnel hole, and when the claw protrudes outward, the portion of the locking hole below the square hole matches the tapered portion of the funnel hole, The parts above the square hole do not match; and the locking mechanism is further provided with a lock release pin that can be inserted into the locking hole through an opening in the lower surface of the base. This is achieved by the structure of a small case.
【0006】[0006]
【作用】ベースに対してカバーを装着するには、カバー
の側面の縁をベースの側面から突出している可動部材の
爪の傾斜面に接触させながらベースに対して押し込む。
すると、可動部材はカバーの側面の内壁に押されてスプ
リングの付勢力に抗して角孔の中に引っ込む。そしてカ
バーが完全にベースに対して押し込まれると、カバー内
壁の凹部と角孔とが一致して可動部材は再び外に突出し
、爪の先端が凹部と係合する。これによってカバーの位
置は完全にロックされる。[Operation] To attach the cover to the base, press the cover against the base while bringing the side edge of the cover into contact with the inclined surface of the claw of the movable member protruding from the side of the base. Then, the movable member is pushed by the inner wall of the side surface of the cover and withdraws into the square hole against the biasing force of the spring. When the cover is completely pushed into the base, the recess in the inner wall of the cover matches the square hole, the movable member projects outward again, and the tip of the claw engages with the recess. This completely locks the cover in position.
【0007】この状態からカバーを外すには、先ずロッ
ク解除ピンを係止孔に挿入して押し上げる。すると、そ
の先端が可動部材の漏斗孔の漏斗状テーパー部分に当接
し、可動部材に対して水平方向の分力の及ぼしてこれを
スプリングに付勢力に抗して角孔の奥の方に移動させる
。そして最後に係止孔の上方部分に入り込んで、係止孔
と漏斗孔とを完全に一致させる。To remove the cover from this state, first insert the lock release pin into the locking hole and push it up. Then, the tip comes into contact with the funnel-shaped tapered part of the funnel hole of the movable member, and a horizontal component force is exerted on the movable member, which moves it toward the back of the square hole against the urging force of the spring. let Finally, it enters the upper part of the locking hole to completely align the locking hole and the funnel hole.
【0008】これによって可動部材の爪はカバーの凹部
から離脱するので、カバーをベースから取り外すことが
可能になる。以下、図面に示す好適実施例に基づいて、
本発明を更に詳細に説明する。[0008] This allows the claws of the movable member to separate from the recesses of the cover, making it possible to remove the cover from the base. Hereinafter, based on the preferred embodiment shown in the drawings,
The present invention will be explained in more detail.
【0009】[0009]
【実施例】図1は、本発明のケース構造の一実施例の外
観を示す分解斜視図である。カバー1は下部が開放され
た箱型をなし、その両側面の内壁の下端領域に凹部2を
具えている。ベース3は、壁等にねじ4で固定されるた
めの取付け部3aと、これから水平に張り出した台座部
3bとからなり、電子回路部品5を実装したプリント基
板6が垂直に搭載されている。前記カバー1はこの台座
部3bの外周面に嵌挿されるように構成されている。台
座部3bの両側面には前記凹部2に係合可能な後述する
爪7が突出している。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an exploded perspective view showing the appearance of an embodiment of the case structure of the present invention. The cover 1 has a box shape with an open bottom, and has recesses 2 in the lower end regions of the inner walls on both sides thereof. The base 3 consists of a mounting part 3a for fixing to a wall or the like with screws 4, and a pedestal part 3b extending horizontally from the mounting part 3a, on which a printed circuit board 6 on which an electronic circuit component 5 is mounted is mounted vertically. The cover 1 is configured to be fitted onto the outer peripheral surface of the pedestal portion 3b. Claws 7, which will be described later and can be engaged with the recess 2, protrude from both side surfaces of the base portion 3b.
【0010】この構成について更に詳細に説明する。図
2aに示すように、ベース3の台座部3bには所定の深
さの角型断面の横孔(以下角孔8と称する)がその両側
面に設けられ、これに図3に示すような形態の可動部材
9が摺動自在に嵌合している。可動部材9の先端は上よ
りの下が前方に張り出した傾斜面をなす前記爪7を形成
し、一方、後端はスプリング10を介して角孔8の奥に
接続され、無負荷状態において爪7の傾斜面が角孔8か
ら外に突出するように弾発的に支持されている。[0010] This configuration will be explained in more detail. As shown in FIG. 2a, the pedestal portion 3b of the base 3 is provided with horizontal holes (hereinafter referred to as square holes 8) with a predetermined depth and a square cross section on both sides thereof. A movable member 9 of the form is slidably fitted. The distal end of the movable member 9 forms the pawl 7, which is an inclined surface with the lower part protruding forward than the upper part, while the rear end is connected to the back of the square hole 8 via a spring 10, and the pawl does not function under no load. The inclined surface 7 is elastically supported so as to protrude outward from the square hole 8.
【0011】前記角孔8の中央部には、これを上下に貫
通する係止孔11が設けられ、該係止孔の角孔より下方
に存在する部分11aは台座部3bの下面に開口を有し
ている。一方、係止孔11の角孔より上方の部分11b
は盲孔となっている。前記可動部材9の胴部を上下に貫
通して下方に拡がった漏斗状の貫通孔(以下漏斗孔12
と称する)が設けられている。A locking hole 11 is provided in the center of the square hole 8, passing through it vertically, and a portion 11a of the locking hole located below the square hole has an opening in the lower surface of the base portion 3b. have. On the other hand, a portion 11b above the square hole of the locking hole 11
is a blind hole. A funnel-shaped through hole (hereinafter referred to as funnel hole 12) that vertically penetrates the body of the movable member 9 and expands downward.
) is provided.
【0012】係止孔11と漏斗孔12との位置関係につ
いて説明すると、図2aに示すように、爪7が角孔8か
ら突出している無負荷状態において、両孔11と12の
中心線同士は一致せず、係止孔11の下方部分11aは
漏斗孔12のテーパー面の領域に対面しているが、上方
部分11bは漏斗孔12の小径部に対してはずれた位置
を占める。そして、図2bに示すように、爪7が角孔8
内に引っ込んだ状態では、両孔の中心軸が完全に一致し
て係止孔の上下部分11aと11bとが連通する。To explain the positional relationship between the locking hole 11 and the funnel hole 12, as shown in FIG. do not match, and the lower part 11a of the locking hole 11 faces the region of the tapered surface of the funnel hole 12, while the upper part 11b occupies a position offset from the small diameter part of the funnel hole 12. Then, as shown in FIG. 2b, the claw 7 is connected to the square hole 8.
When the locking hole is retracted inward, the center axes of both holes are completely aligned, and the upper and lower portions 11a and 11b of the locking hole communicate with each other.
【0013】このように構成された本発明のケースにお
いて、ベース3に対してカバー1を装着するには、図2
aに示すようにカバー1を台座部3bに対して上方から
被せるように適用する。すると先ずカバー1の側壁の下
縁が、角孔8から突出している可動部材9の爪7の傾斜
面に接触し、更に下方に下がるにつれて可動部材9を角
孔8に押し込むように作用する。In the case of the present invention constructed as described above, in order to attach the cover 1 to the base 3, the steps shown in FIG.
As shown in a, the cover 1 is applied so as to cover the base portion 3b from above. Then, the lower edge of the side wall of the cover 1 first comes into contact with the inclined surface of the claw 7 of the movable member 9 protruding from the square hole 8, and acts to push the movable member 9 into the square hole 8 as it moves further downward.
【0014】そして、図2bに示すようにカバー1が完
全に押し下げられると、その内壁に設けられている前記
凹部2が台座部3bの角孔8と一致するので、爪7に対
する押圧力が解除され、スプリング10の付勢力によっ
て爪7は再び突出して凹部2と係合する。これによって
カバー1の位置はロックされる。この状態からカバー1
を外すには、先ず、図4aに示すように、U字型に曲が
ったロック解除用ピン13を台座部3bの下面の開口か
ら左右の係止孔11に同時に挿入する。するとピン13
の先端は可動部材9の漏斗孔12のテーパー面の角孔8
の奥の方に近い領域にに接触するので、ピン13を更に
押し上げると可動部材9には押し込み方向の水平分力が
働く。これによって可動部材9はスプリング10の付勢
力に抗して角孔8内に入り込み、爪7はカバーの凹部2
から外れてロックが解除される。これによって、容易に
カバー1を外すことができる。これを図4bに示す。When the cover 1 is completely pushed down as shown in FIG. 2b, the recess 2 provided in the inner wall of the cover 1 aligns with the square hole 8 of the pedestal 3b, so that the pressing force against the claw 7 is released. Then, due to the urging force of the spring 10, the claw 7 protrudes again and engages with the recess 2. This locks the position of the cover 1. Cover 1 from this state
To remove it, first, as shown in FIG. 4a, the U-shaped lock release pins 13 are simultaneously inserted into the left and right locking holes 11 through the openings on the lower surface of the base portion 3b. Then pin 13
The tip of the square hole 8 of the tapered surface of the funnel hole 12 of the movable member 9
Since the movable member 9 contacts an area near the back of the movable member 9, when the pin 13 is further pushed up, a horizontal force in the pushing direction is applied to the movable member 9. As a result, the movable member 9 enters into the square hole 8 against the urging force of the spring 10, and the claw 7 moves into the recess 2 of the cover.
The lock will be released when it comes off. This allows the cover 1 to be easily removed. This is shown in Figure 4b.
【0015】なお、図5に示すように、ピン13のネッ
ク部13aの直径aははその頭部13bの直径bよりも
僅かに細く形成されているので、ピンの頭部13bが係
止孔の上方部分11bに入ると、可動部材9は(b−a
)の分だけ角孔8内を出口側に僅かに移動し、頭部13
bは漏斗孔12の縁に引っ掛かって係止される。これに
よってピン13はその位置に保持される。As shown in FIG. 5, the diameter a of the neck portion 13a of the pin 13 is formed to be slightly smaller than the diameter b of the head portion 13b, so that the head portion 13b of the pin fits into the locking hole. Entering the upper part 11b of the movable member 9 (b-a
) in the square hole 8 toward the exit side, and the head 13
b is caught and locked on the edge of the funnel hole 12. This holds pin 13 in that position.
【0016】この状態からピン13を抜くには、指で爪
7を僅かに押し込んで漏斗孔12と係止孔11の中心線
同士を完全に一致させて、前記係止を解除してからピン
を引き抜けばよい。以上の説明は、カバーをベースに対
して上方から装着する例について述べたが、本発明はこ
れに限定されるものではなく、カバーをベースに対して
前方から装着するタイプのケースについても同様に適用
可能である。To remove the pin 13 from this state, push in the claw 7 slightly with your finger to completely align the center lines of the funnel hole 12 and the locking hole 11, release the lock, and then remove the pin. All you have to do is pull it out. Although the above description has been made regarding an example in which the cover is attached to the base from above, the present invention is not limited to this, and may similarly apply to a type of case in which the cover is attached to the base from the front. Applicable.
【0017】[0017]
【発明の効果】本発明によれば、ベース側の爪とカバー
側の凹部との係合によって確実にカバーをロックできる
と共に、必要に応じて係止孔にピンを挿入することによ
り、爪を引っ込ませてロックを解除することが可能とな
る。これによって安全確実にロックでき、しかも必要に
応じて容易に内部にアクセスできる簡便なケースを提供
することができる。According to the present invention, the cover can be reliably locked by the engagement between the claw on the base side and the recess on the cover side, and the claw can be locked by inserting a pin into the locking hole as necessary. It is possible to release the lock by retracting it. This makes it possible to provide a simple case that can be locked safely and reliably and whose interior can be easily accessed as needed.
【図1】本発明のケースの外観を示す分解斜視図である
。FIG. 1 is an exploded perspective view showing the appearance of a case of the present invention.
【図2】(a),(b)は本発明におけるカバーの装着
・ロックの手順を示すケースの半断面正面図である。FIGS. 2(a) and 2(b) are half-sectional front views of the case showing the procedure for attaching and locking the cover in the present invention.
【図3】可動部材の形状を示す斜視図である。FIG. 3 is a perspective view showing the shape of a movable member.
【図4】(a),(b)は本発明におけるカバーのロッ
ク解除の手順を示すケースの半断面正面図である。FIGS. 4(a) and 4(b) are half-sectional front views of the case showing the procedure for unlocking the cover in the present invention.
【図5】ロック解除用ピンと係止孔,漏斗孔の径の関係
を示す模式図である。FIG. 5 is a schematic diagram showing the relationship between the diameters of the lock release pin, the locking hole, and the funnel hole.
【図6】従来のケースのロック構造を示す正面図(a)
と側断面図(b)である。[Fig. 6] Front view (a) showing the locking structure of a conventional case.
and a side sectional view (b).
【符号の説明】 1…カバー 2…凹部 3…ベース 6…プリント基板 7…爪 8…角孔 9…可動部材 10…スプリング 11…係止孔 12…漏斗孔 13…ロック解除用ピン[Explanation of symbols] 1...Cover 2...Concavity 3...Base 6...Printed circuit board 7...Claws 8... Square hole 9...Movable member 10...Spring 11...Lock hole 12...funnel hole 13...Lock release pin
Claims (1)
ースとカバー内壁との間に密閉空間を形成する箱型カバ
ー(1)とからなる小型ケースであって、ベース(3)
の両側面には所定の深さの横方向の角孔(8)が設けら
れ、該角孔(8)にはこれに摺動自在に嵌合する可動部
材(9)が収容され、該可動部材(9)の先端は、装着
される際の前記カバー(1)の挿入方向から見て下流側
が上流側より前方に張り出した傾斜面を有する爪(7)
を形成し、前記可動部材(9)は、無負荷状態において
前記爪(7)が前記角孔(8)の出口から僅かに突出し
た位置を占めるように、前記角孔(8)の奥に設置され
たスプリング(10)によって弾発的に支持され;前記
カバー(1)の両側面の内壁には、該カバー(1)がベ
ース(3)に装着された場合に前記可動部材の爪(7)
と係合可能な凹部(2)が設けられ;更に、前記ベース
(3)には前記角孔(8)を上下に貫通しベース(3)
の下面に開口を有する係止孔(11)が設けられ、一方
、前記可動部材(9)には胴部を上下に横断する下方の
開いた漏斗孔(12)が設けられ;前記係止孔(11)
と漏斗孔(12)との位置関係は、前記可動部材の爪(
7)の先端が前記角孔(8)内に完全に引っ込んだ状態
では、前記係止孔(11)と漏斗孔(12)との中心線
同士は完全に一致して係止孔(11)の上下部分(11
a,11b)は漏斗孔(12)を介して連通し、爪(7
)が外に突出している状態では、前記係止孔(11)の
前記角孔より下方の部分(11a)は前記漏斗孔(12
)のテーパー部分と一致するが、角孔より上方の部分(
11b)は一致しないようになっており;更に、別に、
前記ベース(3)の下面の開口を通じて前記係止孔(1
1)に挿入可能なロック解除用ピン(13)を具えたこ
とを特徴とするロック機構付きの小型ケースの構造。1. A small case consisting of a base (3) and a box-shaped cover (1) attached to the base to form a sealed space between the base and the inner wall of the cover, the case comprising: a base (3);
A horizontal square hole (8) of a predetermined depth is provided on both sides of the square hole (8), and a movable member (9) that is slidably fitted into the square hole (8) is accommodated in the square hole (8). The tip of the member (9) is a claw (7) having an inclined surface with the downstream side protruding forward from the upstream side when viewed from the insertion direction of the cover (1) when installed.
, and the movable member (9) is located at the back of the square hole (8) so that the claw (7) occupies a position slightly protruding from the outlet of the square hole (8) in an unloaded state. Resiliently supported by installed springs (10); on the inner walls of both sides of the cover (1), when the cover (1) is attached to the base (3), the movable member's claws ( 7)
Further, the base (3) is provided with a recess (2) that can be engaged with the square hole (8) vertically through the base (3).
A locking hole (11) having an opening is provided on the lower surface of the movable member (9), and a funnel hole (12) with an open lower part extending vertically across the body is provided in the movable member (9); (11)
The positional relationship between the and the funnel hole (12) is determined by the claw (12) of the movable member.
7) is completely retracted into the square hole (8), the center lines of the locking hole (11) and the funnel hole (12) are completely aligned and the locking hole (11) The upper and lower parts of (11
a, 11b) communicate through the funnel hole (12), and the claw (7
) protrudes outward, the portion (11a) of the locking hole (11) below the square hole is connected to the funnel hole (12).
), but the part above the square hole (
11b) does not match; furthermore, separately,
The locking hole (1) passes through the opening in the lower surface of the base (3).
1) A structure of a small case with a locking mechanism, characterized in that it is equipped with a lock release pin (13) that can be inserted into the case.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3100077A JPH04331410A (en) | 1991-05-01 | 1991-05-01 | Structure of small-sized case with locking mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3100077A JPH04331410A (en) | 1991-05-01 | 1991-05-01 | Structure of small-sized case with locking mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04331410A true JPH04331410A (en) | 1992-11-19 |
Family
ID=14264389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3100077A Withdrawn JPH04331410A (en) | 1991-05-01 | 1991-05-01 | Structure of small-sized case with locking mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04331410A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108391409A (en) * | 2018-05-07 | 2018-08-10 | 柴玲飞 | A kind of communication cabinet |
-
1991
- 1991-05-01 JP JP3100077A patent/JPH04331410A/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108391409A (en) * | 2018-05-07 | 2018-08-10 | 柴玲飞 | A kind of communication cabinet |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19980806 |