Patent US3031901A successfully refreshed from Google Patents.
US3031901A
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US
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Twelve speed power shift planetary transmission
Assignee: Individual
•
Filing: 1959-09-23
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Granted: 1962-05-01
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Expires: 1979-09-23
Abstract
No abstract record available.
Inventors
- 👤 Howard W Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:26
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H2200/00; F16H2200/003; F16H2200/006; F16H2200/0082; F16H2200/0091; F16H2200/20; F16H2200/2002; F16H2200/2007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2582487A
Cited
US2671546A
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US2651950A
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US2749767A
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US2932989A
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US2865230A
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US2873723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |