US2897679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically controlled clutch
Assignee: Individual
•
Filing: 1956-08-02
•
Granted: 1959-08-04
•
Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Nelson L Broatch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:36
CPC Classifications
G; G03; G03B; G03B15/00; F; F16; F16D; F16D11/00; F16D11/02; F16D11/04; G03B19/00; G03B19/18; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1524
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734604A
Cited
US886004A
Cited
US1759630A
Cited
US2368892A
Cited
US2475740A
Cited
US2775129A
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 |