Patent US2647417A successfully refreshed from Google Patents.
US2647417A
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Differential gearing power transmission
Assignee: Individual
•
Filing: 1949-03-11
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Granted: 1953-08-04
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Expires: 1969-03-11
Abstract
No abstract record available.
Inventors
- 👤 Lev A Trofimov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:00
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H37/0846
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1984830A
Cited
US1984831A
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US2117340A
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US2220983A
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US2354204A
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US2384776A
Cited
US2464275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |