Patent US2666876A successfully refreshed from Google Patents.
US2666876A
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US
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Electric motor drive for differential gearing
Assignee: Individual
•
Filing: 1950-02-24
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Granted: 1954-01-19
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Expires: 1970-02-24
Abstract
No abstract record available.
Inventors
- 👤 Sinclair Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:58
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/74; H02P5/747; H02P5/753; F; F16; F16D; F16D67/00; H02K; H02K7/00; H02K7/10; H02K7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US436127A
Cited
US854721A
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US855623A
Cited
US1235132A
Cited
US1945233A
Cited
US2133365A
Cited
US2346877A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |