US3081643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain tightener
Assignee: Motors Liquidation Co
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Filing: 1961-12-15
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Granted: 1963-03-19
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Expires: 1981-12-15
Abstract
No abstract record available.
Inventors
- 👤 Huboi Carl August
- 👤 Eicker Helmut
- 👤 Bonn Erich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:07
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/0848; F16H2007/0802; F16H2007/0808; F16H2007/0853; F16H2007/0863; F16H2007/0872; F16H2007/0889; F16H2007/0891
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
A CHAIN TIGHTENER COMPRISING IN COMBINATION: (A) A GUIDE MEMBER, (B) A MEMBER SLIDABLE THEREON HAVING A U-SHAPED PORTION TO STRADDLE THE CHAIN, (C) A RUBBER CHAIN JOCKEY SECURED IN THE U-SHAPED PORTION, (D) EACH SAID MEMBER BEING IN THE FORM OF A SHEET METAL STAMPING, (E) A TENSION SPRING FASTENED AT ITS ENDS, RESPECTIVELY, TO THE MEMBERS, AND (F) RATCHETS FORMED INTEGRALLY ON THE SLIDABLE MEMBER ENGAGED BY SPRING PAWLS ON THE GUIDE MEMBER TO PREVENT MOVEMENT OF THE SLIDABLE MEMBER IN THE DIRECTION AGAINST THE ACTION OF THE SPRING, (G) SAID PAWLS BEING FORMED AS INTEGRAL PARTS OF A SHEET METAL STAMPING ATTACHED TO THE GUIDE MEMBER.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |