Patent US4855762A successfully refreshed from Google Patents.
Patent US2906383A successfully refreshed from Google Patents.
US2906383A
Expired / Lapsed
US
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Clutch coupling
Assignee: ZF Friedrichshafen AG
•
Filing: 1955-07-06
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Granted: 1959-09-29
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Expires: 1975-07-06
Abstract
No abstract record available.
Inventors
- 👤 Gabriel Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:48
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/08; F16D11/10; F16D25/00; F16D25/06; F16D25/061
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB191117167A
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US1345633A
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US2356598A
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GB564638A
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US2397883A
Cited
US2605749A
Cited
US2428336A
Cited
US2541452A
Cited
US2715343A
Cited
US2634621A
Cited
US2791131A
Cited
US2791771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |