JP3107208B2 - Automatic transmission lubrication system - Google Patents

Automatic transmission lubrication system

Info

Publication number
JP3107208B2
JP3107208B2 JP01036050A JP3605089A JP3107208B2 JP 3107208 B2 JP3107208 B2 JP 3107208B2 JP 01036050 A JP01036050 A JP 01036050A JP 3605089 A JP3605089 A JP 3605089A JP 3107208 B2 JP3107208 B2 JP 3107208B2
Authority
JP
Japan
Prior art keywords
oil
outer member
small
lubrication
diameter
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.)
Expired - Lifetime
Application number
JP01036050A
Other languages
Japanese (ja)
Other versions
JPH02217658A (en
Inventor
和義 弓削
Original Assignee
ジャトコ・トランステクノロジー株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ジャトコ・トランステクノロジー株式会社 filed Critical ジャトコ・トランステクノロジー株式会社
Priority to JP01036050A priority Critical patent/JP3107208B2/en
Publication of JPH02217658A publication Critical patent/JPH02217658A/en
Application granted granted Critical
Publication of JP3107208B2 publication Critical patent/JP3107208B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/042—Guidance of lubricant
    • F16H57/043—Guidance of lubricant within rotary parts, e.g. axial channels or radial openings in shafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0434—Features relating to lubrication or cooling or heating relating to lubrication supply, e.g. pumps ; Pressure control
    • F16H57/0441—Arrangements of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F16H57/0467—Elements of gearings to be lubricated, cooled or heated
    • F16H57/0469—Bearings or seals
    • F16H57/0471—Bearing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Details Of Gearings (AREA)
  • Structure Of Transmissions (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本発明は、自動変速機の潤滑装置に関するものであ
る。The present invention relates to a lubrication device for an automatic transmission.

【０００２】[0002]

【従来の技術】[Prior art]

自動変速機では一般に強制潤滑が行なわれており、潤
滑油路を通して油を潤滑必要部に供給している。このた
めに、例えば特開昭62−62047号公報に示されるよう
に、リリーフバルブから排出された余分な油やオイルク
ーラを通過した油などが潤滑に使用される。また、これ
とは別に油圧源の油圧を直接潤滑に使用する場合があ
る。この場合には、油圧源の油路が必要以上に潤滑油路
に流れることを防止するために、絞り装置が設けられ
る。絞り装置としては絞り効果の大きいチョーク（すな
わち、直径に比較して長さ寸法が大きい小径穴）が用い
られる。In an automatic transmission, forced lubrication is generally performed, and oil is supplied to a portion requiring lubrication through a lubricating oil passage. For this purpose, for example, as shown in Japanese Patent Application Laid-Open No. 62-62047, excess oil discharged from a relief valve or oil that has passed through an oil cooler is used for lubrication. Alternatively, the hydraulic pressure of the hydraulic pressure source may be directly used for lubrication. In this case, a throttling device is provided to prevent the oil passage of the hydraulic pressure source from flowing into the lubricating oil passage more than necessary. A choke having a large drawing effect (that is, a small-diameter hole whose length is larger than the diameter) is used as the drawing device.

【０００３】[0003]

【発明が解決しようとする課題】[Problems to be solved by the invention]

しかしながら、上記のように油圧源の油をチョークを
介して潤滑必要部に供給する構成では、必要以上に油が
流れ、特に高油温時に油の粘度が低下した場合などには
油圧源の油圧低下、流量不足などを発生する。また、必
要以上に油が供給されると油の粘性のために摩擦抵抗が
増大する。潤滑油路への流量を減らすためにはチョーク
の径を小さくすることが必要であるが、所定以下の径と
することは加工上困難であり、また径を小さくするとゴ
ミなどが詰まり易くなる。本発明はこのような課題を解
決することを目的としている。However, in the configuration in which the oil of the oil pressure source is supplied to the portion requiring lubrication via the choke as described above, the oil flows more than necessary, and especially when the viscosity of the oil decreases at a high oil temperature, the oil pressure of the oil pressure source is reduced. It causes a decrease and insufficient flow. Further, when oil is supplied more than necessary, frictional resistance increases due to the viscosity of the oil. In order to reduce the flow rate to the lubricating oil passage, it is necessary to reduce the diameter of the choke. However, it is difficult to reduce the diameter of the choke to a predetermined diameter or less. An object of the present invention is to solve such a problem.

【０００４】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

本発明は、チョークを直列に２段設けることにより、
上記課題を解決する。 すなわち、本発明による自動変速機の潤滑装置は、円
筒状部（22）を有する外側部材（12）と、外側部材（1
2）の内径部にはめ合わされて固定される内側部材（2
4）とを有し、外側部材（12）の円筒状部の外周部に潤
滑油の供給を必要とする潤滑必要部（32）が設けられて
おり、外側部材（12）は潤滑必要部（32）とは異なる軸
方向位置に油圧源の油圧が作用する油室又は油路（44）
を有しており、外側部材（12）と内側部材（24）とのは
め合い部には外側部材（12）の内径部及び内側部材（2
4）の外径部の両方又は一方に設けた凹部によって形成
される油だまり（40）が設けられており、油圧源の油圧
が作用する油室又は油路と油だまり（40）とを連通させ
る第１小径穴（42）、及び潤滑必要部（32）と油だまり
（40）とを連通させる第２小径穴（46）が外側部材に設
けられている。The present invention provides two stages of chokes in series,
Solution to the Problems That is, the lubricating device for an automatic transmission according to the present invention includes an outer member (12) having a cylindrical portion (22) and an outer member (1).
The inner member (2
4), and a lubrication required portion (32) for supplying lubricating oil is provided on the outer peripheral portion of the cylindrical portion of the outer member (12), and the outer member (12) is provided with a lubrication required portion ( Oil chamber or oil passage (44) in which the hydraulic pressure of the hydraulic power source acts on an axial position different from that in 32)
The fitting portion between the outer member (12) and the inner member (24) has an inner diameter portion of the outer member (12) and an inner member (2).
An oil sump (40) formed by a concave portion provided on both or one of the outer diameter portions of 4) is provided, and the oil sump (40) communicates with the oil chamber or oil passage on which the hydraulic pressure of the hydraulic pressure source operates. The outer member is provided with a first small-diameter hole (42) for making the lubrication, and a second small-diameter hole (46) for making the lubrication-required portion (32) communicate with the oil reservoir (40).

【０００５】[0005]

【作用】[Action]

油圧源の吐出圧ポートの油圧は、まず第１チョークを
通って油だまりに入り、次いで第２チョークを通って潤
滑必要部に供給される。従って、２段の絞り作用が発生
するので、潤滑必要部に実際に供給される油量は非常に
少なくなる。これにより、油圧源の吐出圧ポートの油圧
が低下したり油量が不足したりすることはなくなる。ま
た、第１チョーク及び第２チョークは極端に小径とする
必要がないので加工は容易であり、またゴミなどが詰ま
る可能性も少ない。The hydraulic pressure of the discharge pressure port of the hydraulic pressure source first enters the oil sump through the first choke, and is then supplied to the lubrication required part through the second choke. Therefore, since a two-stage throttle action is generated, the amount of oil actually supplied to the portion requiring lubrication is extremely small. As a result, the oil pressure at the discharge pressure port of the oil pressure source does not decrease and the oil amount does not run short. Further, the first chalk and the second chalk do not need to be extremely small in diameter, so that processing is easy, and there is little possibility that dust or the like is clogged.

【０００６】 すなわち、本発明では、従来のような絞り装置を使用
せずに、油圧源の油圧が作用する油室又は油路と油だま
りとを連通させる第１小径穴、及び潤滑必要部と油だま
りとを連通させる第２小径穴が外側部材に設けられる構
成とし、外側部材と内側部材とのはめ合い部分に油だま
りを設け、外側部材に第１小径穴と第２小径穴を設ける
ようにすることにより、油圧源の油圧が作用する油室と
潤滑必要部とを直接油路で接続することができ、その結
果、油圧源の油圧の低下、油量過多による摩擦抵抗の増
大などを防止することができ、またチョークを極端に小
径とする必要がないので加工が容易となり、ゴミによる
詰まりなども防止することができる。また、油溜まりを
外側部材と内側部材との合わせ部に形成することによっ
て、回路構成が非常に単純となるため最小限の部品点数
とすることができ、且つ油溜まり及び２つの小径穴の加
工が容易となるという効果がある。That is, according to the present invention, the first small-diameter hole for communicating the oil chamber with the oil chamber or oil passage on which the hydraulic pressure of the hydraulic source operates and the lubrication-required portion are used without using the conventional throttle device. A second small-diameter hole communicating with the oil pool is provided in the outer member, an oil pool is provided in a fitting portion between the outer member and the inner member, and a first small-diameter hole and a second small-diameter hole are provided in the outer member. In this way, the oil chamber in which the hydraulic pressure of the hydraulic source acts and the lubrication-required part can be directly connected by the oil path. As a result, a decrease in the hydraulic pressure of the hydraulic source, an increase in frictional resistance due to an excessive amount of oil, etc. Since the choke does not need to be made extremely small in diameter, processing becomes easy and clogging by dust can be prevented. Further, since the oil reservoir is formed at the joint between the outer member and the inner member, the circuit configuration becomes very simple, so that the number of parts can be reduced to a minimum, and the oil reservoir and two small-diameter holes are machined. This has the effect that it becomes easier.

【０００７】[0007]

【実施例】【Example】

第１図に本発明の実施例を示す。オイルポンプ10は第
１ハウジング部材12及び第２ハウジング部材14を有して
おり、これらの内部にロータ16を有している。ロータ16
はトルクコンバータ18のスリーブ20によって回転駆動可
能である。第１ハウジング部材12はこれと一体の円筒状
部22を有しており、この円筒状部22の内径部47にステー
タシャフト24が圧入により固着されている。ステータシ
ャフト24の内径部には入力軸が支持され、またステータ
シャフト24は第１図中右端部側にワンウェイクラッチ28
を介してステータ30を支持している。円筒状部22の外周
部48の第１図中左端側にはブッシュ32が固着されてお
り、これによりクラッチドラム34の内径部が回転可能に
支持されている。クラッチドラム34の内部にはピストン
36、クラッチプレート群38などが配置される。ステータ
シャフト24の外径部49の円筒状部22の内径部47とのはめ
合い部に凹部40が設けられている。この凹部40により形
成される室が第１小径穴42によりオイルポンプ10の吐出
圧ポート44と連通している。また、凹部40によって形成
される上記室は第２小径穴46によってブッシュ32の配置
部と連通している。FIG. 1 shows an embodiment of the present invention. The oil pump 10 has a first housing member 12 and a second housing member 14, and has a rotor 16 therein. Rotor 16
Can be rotationally driven by the sleeve 20 of the torque converter 18. The first housing member 12 has a cylindrical portion 22 integral therewith, and the stator shaft 24 is fixed to the inner diameter portion 47 of the cylindrical portion 22 by press fitting. An input shaft is supported on the inner diameter of the stator shaft 24, and the one-way clutch 28 is mounted on the right end of FIG.
, The stator 30 is supported. A bush 32 is fixed to the left end side of the outer peripheral portion 48 of the cylindrical portion 22 in FIG. 1, so that the inner diameter portion of the clutch drum 34 is rotatably supported. Piston inside clutch drum 34
36, a clutch plate group 38 and the like are arranged. A concave portion 40 is provided in a fitting portion of the outer diameter portion 49 of the stator shaft 24 with the inner diameter portion 47 of the cylindrical portion 22. The chamber formed by the concave portion 40 communicates with the discharge pressure port 44 of the oil pump 10 through the first small diameter hole 42. The chamber formed by the concave portion 40 communicates with the arrangement portion of the bush 32 through the second small-diameter hole 46.

【０００８】 次にこの実施例の動作について説明する。吐出圧ポー
ト44にはロータ16の回転中は常に高圧の油圧が吐出され
ている。吐出圧ポート44の油の一部は第１小径穴42を通
って凹部40によって構成される室に流入する。更に、こ
の室内の油は第２小径穴46を通ってブッシュ32に供給さ
れる。ブッシュ32に供給される油は、絞り作用を有する
第１小径穴42及び第２小径穴46を通り、２段の絞り効果
を受けているため流量は少なくなっている。従って、必
要以上の油がブッシュ32に供給されることはなく、また
吐出圧ポート44の油圧が低下することもない。また、第
１小径穴42及び第２小径穴46は極端に小径とする必要が
なく、加工が容易となり、またゴミによる詰まりも発生
しない。なお、油だまりとなる室ステータシャフト24側
に設けた凹部40によって構成したが、円筒状部22側に凹
部を設けることにより構成してもよく、また両者に凹部
を設けることにより構成してもよい。Next, the operation of this embodiment will be described. During the rotation of the rotor 16, a high oil pressure is constantly discharged to the discharge pressure port 44. Part of the oil in the discharge pressure port 44 flows into the chamber defined by the recess 40 through the first small-diameter hole 42. Further, the oil in this chamber is supplied to the bush 32 through the second small diameter hole 46. The oil supplied to the bush 32 passes through the first small-diameter hole 42 and the second small-diameter hole 46 having a throttle action, and is subjected to a two-stage throttle effect, so that the flow rate is small. Therefore, no more oil than necessary is supplied to the bush 32, and the oil pressure of the discharge pressure port 44 does not decrease. In addition, the first small diameter hole 42 and the second small diameter hole 46 do not need to be extremely small in diameter, so that processing becomes easy and clogging due to dust does not occur. Although the recess 40 is provided on the side of the chamber stator shaft 24 that becomes an oil reservoir, the recess may be provided on the side of the cylindrical portion 22 or may be provided by providing a recess on both sides. Good.

【０００９】[0009]

【発明の効果】【The invention's effect】

以上説明してきたように、本発明によると、油圧源の
吐出圧ポートの油圧を直列に配置された２つのチョーク
を通して潤滑必要部に供給するようにしたので、適正な
量の油を潤滑必要部に供給することが可能となり、油圧
源の吐出圧ポートの油圧の低下、油量過多による摩擦抵
抗の増大などを防止することができ、またチョークを極
端に小径とする必要がないので加工が容易となり、ゴミ
による詰まりなども防止することができる。As described above, according to the present invention, the oil pressure at the discharge pressure port of the oil pressure source is supplied to the lubrication-requiring portion through the two chokes arranged in series. To reduce the oil pressure at the discharge pressure port of the oil pressure source and to prevent an increase in frictional resistance due to an excessive amount of oil. Also, there is no need to make the choke an extremely small diameter, so machining is easy. Thus, clogging with dust can be prevented.

【００１０】 すなわち、本発明では、従来のような絞り装置を使用
せずに、油圧源の油圧が作用する油室又は油路と油だま
りとを連通させる第１小径穴、及び潤滑必要部と油だま
りとを連通させる第２小径穴が外側部材に設けられる構
成とし、外側部材と内側部材とのはめ合い部分に油だま
りを設け、外側部材に第１小径穴と第２小径穴を設ける
ようにすることにより、油圧源の油圧が作用する油室と
潤滑必要部とを直接油路で接続することができ、その結
果、油圧源の油圧の低下、油量過多による摩擦抵抗の増
大などを防止することができ、またチョークを極端に小
径とする必要がないので加工が容易となり、ゴミによる
詰まりなども防止することができる。また、油溜まりを
外側部材と内側部材との合わせ部に形成することによっ
て、回路構成が非常に単純となるため最小限の部品点数
とすることができ、且つ油溜まり及び２つの小径穴の加
工が容易となるという効果がある。That is, according to the present invention, the first small-diameter hole for communicating the oil chamber with the oil chamber or oil passage on which the hydraulic pressure of the hydraulic pressure source operates and the lubrication-required portion are used without using the conventional throttle device. A second small-diameter hole communicating with the oil pool is provided in the outer member, an oil pool is provided in a fitting portion between the outer member and the inner member, and a first small-diameter hole and a second small-diameter hole are provided in the outer member. In this way, the oil chamber in which the hydraulic pressure of the hydraulic source acts and the lubrication-required part can be directly connected by the oil path. As a result, a decrease in the hydraulic pressure of the hydraulic source, an increase in frictional resistance due to an excessive amount of oil, etc. Since the choke does not need to be made extremely small in diameter, processing becomes easy and clogging by dust can be prevented. Further, since the oil reservoir is formed at the joint between the outer member and the inner member, the circuit configuration becomes very simple, so that the number of parts can be reduced to a minimum, and the oil reservoir and two small-diameter holes are machined. This has the effect that it becomes easier.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 本発明の実施例を示す図である。FIG. 1 is a diagram showing an embodiment of the present invention.

【符号の説明】[Explanation of symbols]

10……オイルポンプ（油圧源）、 12……第１ハウジング部材（外側部材）、 22……円筒状部、 24……ステータシャフト（内側部材）、 32……ブッシュ（潤滑必要部）、 34……クラッチドラム、 40……凹部（油だまり）、 42……第１小径穴（第１チョーク）、 44……吐出圧ポート、 46……第２小径穴（第２チョーク）。 10 oil pump (hydraulic power source), 12 first housing member (outer member), 22 cylindrical part, 24 stator shaft (inner member), 32 bush (necessary lubrication), 34 ... clutch drum, 40 ... recess (oil pool), 42 ... first small diameter hole (first choke), 44 ... discharge pressure port, 46 ... second small diameter hole (second choke).

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】円筒状部を有する外側部材と、外側部材の
内径部にはめ合わされて固定される内側部材とを有し、 外側部材の円筒状部の外周部に潤滑油の供給を必要とす
る潤滑必要部が設けられており、 外側部材は潤滑必要部とは異なる軸方向位置に油圧源の
油圧が作用する油室又は油路を有しており、 外側部材と内側部材とのはめ合い部には外側部材の内径
部及び内側部材の外径部の両方又は一方に設けた凹部に
よって形成される油だまりが設けられており、 油圧源の油圧が作用する油室又は油路と油だまりとを連
通させる第１小径穴、及び潤滑必要部と油だまりとを連
通させる第２小径穴が外側部材に設けられている自動変
速機の潤滑装置。An outer member having a cylindrical portion, and an inner member fitted and fixed to an inner diameter portion of the outer member, and a lubricating oil needs to be supplied to an outer peripheral portion of the cylindrical portion of the outer member. The outer member has an oil chamber or an oil passage in which the hydraulic pressure of the hydraulic source acts at an axial position different from the lubrication required portion, and the outer member and the inner member are fitted. The portion is provided with an oil sump formed by a concave portion provided on both or one of the inner diameter portion of the outer member and the outer diameter portion of the inner member, and the oil sump and the oil chamber or oil passage on which the hydraulic pressure of the hydraulic power source acts. A lubricating device for an automatic transmission, wherein the first member has a first small-diameter hole communicating with the oil reservoir, and a second small-diameter hole communicating the oil reservoir with the lubrication-requiring portion. 【請求項２】外側部材はオイルポンプを構成する一方の
ハウジング部材であり、内側部材は上記ハウジング部材
に固着されてトルクコンバータのステータを支持するス
テータシャフトであり、潤滑必要部はハウジング部材の
円筒状部の外周部に支持されるクラッチドラムの軸受け
であり、油圧源の油圧が作用する油室又は油路はオイル
ポンプの吐出圧ポートである請求項１記載の自動変速機
の潤滑装置。The outer member is one housing member constituting an oil pump, the inner member is a stator shaft fixed to the housing member and supporting a stator of a torque converter, and the portion requiring lubrication is a cylindrical member of the housing member. The lubricating device of an automatic transmission according to claim 1, wherein the oil chamber or the oil passage, which is a bearing of a clutch drum supported on an outer peripheral portion of the shape portion and to which a hydraulic pressure of a hydraulic source acts, is a discharge pressure port of an oil pump.
JP01036050A 1989-02-17 1989-02-17 Automatic transmission lubrication system Expired - Lifetime JP3107208B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP01036050A JP3107208B2 (en) 1989-02-17 1989-02-17 Automatic transmission lubrication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01036050A JP3107208B2 (en) 1989-02-17 1989-02-17 Automatic transmission lubrication system

Publications (2)

Publication Number Publication Date
JPH02217658A JPH02217658A (en) 1990-08-30
JP3107208B2 true JP3107208B2 (en) 2000-11-06

Family

ID=12458888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP01036050A Expired - Lifetime JP3107208B2 (en) 1989-02-17 1989-02-17 Automatic transmission lubrication system

Country Status (1)

Country Link
JP (1) JP3107208B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021117573A1 (en) * 2019-12-14 2021-06-17 ジヤトコ株式会社 Oil passage structure

Also Published As

Publication number Publication date
JPH02217658A (en) 1990-08-30

Similar Documents

Publication Publication Date Title
US6648611B2 (en) Gerotor pump having an eccentric ring housing with an integral pressure chamber
EP0224764B1 (en) Axial thrust compensation device for fluid pumps
US4955852A (en) Planetary gear mechanism having means for accurate alignment of sun gear
US4010833A (en) Clutch assembly for planetary-gear trains
JP4639017B2 (en) Radial-axial composite sliding bearing
JP3057478B2 (en) Lubrication structure of hydraulic clutch
US4362479A (en) Rotary fluid pressure device and lubrication circuit therefor
JP3107208B2 (en) Automatic transmission lubrication system
DE69913452T2 (en) Graduated seal and bushing
US4599051A (en) Vane type rotary pump
US4035113A (en) Gerotor device with lubricant system
KR100909311B1 (en) Clutch assembly with gear pump
JP3505814B2 (en) Transmission forced lubrication system
EP1172577B1 (en) Fluid coupling with baffle plate
US5285870A (en) Lubrication arrangement for automatic power transmission
US4615414A (en) Automatic lubricating device for machine shafts
JPH0225006Y2 (en)
JPH08121567A (en) Oil pump structure
EP0507512B1 (en) Oil pumps
JP3172615B2 (en) Continuously variable transmission
JPH0328205Y2 (en)
JP3292666B2 (en) Mounting structure of relief valve for lubricating oil
DE3421935C2 (en)
JP3207895B2 (en) Fluid transmission
KR100666684B1 (en) Oil circulating structure for main shaft of automatic transmission

Legal Events

Date Code Title Description
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20080908

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090908

Year of fee payment: 9

EXPY Cancellation because of completion of term
FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090908

Year of fee payment: 9