US2667768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque transmitting coupling
Assignee: Stewart Warner Corp
•
Filing: 1951-11-27
•
Granted: 1954-02-02
•
Expires: 1971-11-27
Abstract
No abstract record available.
Inventors
- 👤 Herman E Winkler
- 👤 Maurice F Winkler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:19
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; F16D1/00; F16D1/06; F16D1/08; F16D1/0847
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1471143A
Cited
US1945293A
Cited
US2251804A
Cited
US2272900A
Cited
US2550517A
Cited
US2486885A
Cited
US2554311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-01 | 1957-08-03 | 1958-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-01 | 1961-08-03 | 1962-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-01 | 1965-08-03 | 1966-02-02 | $7700.00 | Window Closed / Lapsed |