Patent US2688389A successfully refreshed from Google Patents.
US2688389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch mechanism
Assignee: Eastman Kodak Co
•
Filing: 1950-12-14
•
Granted: 1954-09-07
•
Expires: 1970-12-14
Abstract
No abstract record available.
Inventors
- 👤 Wittel Otto
- 👤 Wittel George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:27
CPC Classifications
F; F16; F16D; F16D41/00; F16D41/20; F16D41/206; G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/43
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |