US2897933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic clutch
Assignee: Valeo SE
•
Filing: 1954-11-16
•
Granted: 1959-08-04
•
Expires: 1974-11-16
Abstract
No abstract record available.
Inventors
- 👤 Maurice Jean
- 👤 Rist Michel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:32
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/06; F16D48/064; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1021; F16D2500/1022; F16D2500/104; F16D2500/10406; F16D2500/10412; F16D2500/10443; F16D2500/1045; F16D2500/10475; F16D2500/30; F16D2500/306; F16D2500/3069; F16D2500/50; F16D2500/502; F16D2500/50224; F16D2500/51; F16D2500/5104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1946200A
Cited
US2319084A
Cited
US2297605A
Cited
US2320922A
Cited
US2403340A
Cited
US2535366A
Cited
US2688388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |