US2477451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction drive mechanism with power feedback
Assignee: Acrotorque Co
•
Filing: 1945-10-16
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Granted: 1949-07-26
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Expires: 1965-10-16
Abstract
No abstract record available.
Inventors
- 👤 Sergei G Guins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:51
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/02; F16H47/04; B; B64; B64C; B64C27/00; B64C27/54; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR556470A
Cited
US1855222A
Cited
US2354597A
Cited
US2205235A
Cited
US2283759A
Cited
US2285431A
Cited
US2327647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |