US2634629A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible drive mechanism
Assignee: DeVere Co Inc
•
Filing: 1950-10-13
•
Granted: 1953-04-14
•
Expires: 1970-10-13
Abstract
No abstract record available.
Inventors
- 👤 Hawkins Albert Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:51
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/46; F16H3/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US644527A
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US795499A
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US1029610A
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US1334003A
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US1512878A
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US1583714A
Cited
US1637722A
Cited
US2238006A
Cited
US2277367A
Cited
US2490398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |