Patent US2389810A successfully refreshed from Google Patents.
US3181384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain shift devices for bicycles and similar chain driven vehicles
Assignee: Individual
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Filing: 1963-03-20
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Granted: 1965-05-04
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Expires: 1983-03-20
Abstract
No abstract record available.
Inventors
- 👤 Juy Lucien Charles Hippolyte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:42
CPC Classifications
B; B62; B62M; B62M9/00; B62M9/04; B62M9/06; B62M9/10; B62M9/12; B62M9/131; B62M9/135; B62M9/134; B62M9/1344; B62M9/1348; B62M9/137; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2042; Y10T74/20426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A CHAIN SHIFT DEVICE FOR CHAIN DRIVEN VEHICLES COMPRISING A HOUSING HAVING A BORE THEREIN, CHAIN GUIDE MEANS FOR DISPLACEMENT OF A CHAIN OF THE VEHICLE DURING A GEAR CHANGING OPERATION, A SPRING LOADED SPINDLE SLIDABLY SUPPORTED IN SAID BORE AND IN TURN SUPPORTING THE CHAIN GUIDE MEANS FOR DISPLACEMENT, MEANS SUPPORTED FROM SAID HOUSING AND IN CONTACT WITH THE SPINDLE FOR MOVING THE SAME TO EFFECT DESIRED DISPLACEMENT OF THE CHAIN, SAID HOUSING BEING CONSTITUTED OF SYNTHETIC PLASTIC MATERIAL AND METAL SLEEVE MEANS IN THE BORE OF THE HOUSING ISOLATING THE SPINDLE THEREFROM AND PROVIDING A BEARING SURFACE FOR THE SPINDLE.
Claim 2
Dependent Claim
102 words
A CHAIN SHIFT DEVICE FOR CHAIN DRIVEN VEHICLES COMPRISING A HOUSING HAVING A BORE THEREIN, CHAIN GUIDE MEANS FOR DISPLACEMENT OF A CHAIN OF THE VEHICLE DURING A GEAR CHANGING OPERATION, A SPRING LOADED SPINDLE SLIDABLY SUPPORTED IN SAID BORE AND IN TURN SUPPORTING THE CHAIN GUIDE MEANS FOR DISPLACEMENT, MEANS SUPPORTED FROM SAID HOUSING AND IN CONTACT WITH THE SPINDLE FOR MOVING THE SAME TO EFFECT DESIRED DISPLACEMENT OF THE CHAIN, SAID HOUSING BEING CONSTITUTED OF SYNTHETIC PLASTIC MATERIAL AND METAL SLEEVE MEANS IN THE BORE OF THE HOUSING ISOLATING THE SPINDLE THEREFROM AND PROVIDING A BEARING SURFACE FOR THE SPINDLE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-03 | 1968-11-02 | 1969-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-03 | 1972-11-02 | 1973-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-03 | 1976-11-02 | 1977-05-04 | $7700.00 | Window Closed / Lapsed |