US2673633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque and speed responsive clutch
Assignee: Self Changing Gears Ltd
•
Filing: 1948-04-19
•
Granted: 1954-03-30
•
Expires: 1968-04-19
Abstract
No abstract record available.
Inventors
- 👤 Miller Albert Arthur
- 👤 Wilson Andrew Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:55
CPC Classifications
F; F16; F16D; F16D43/00; F16D43/02; F16D43/22; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19251; Y10T74/19256; Y10T74/1926; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19442; Y10T74/19447
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |