US2521729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propulsion and power take-off gearing for vehicles
Assignee: Timken Detroit Axle Co
•
Filing: 1945-12-11
•
Granted: 1950-09-12
•
Expires: 1965-12-11
Abstract
No abstract record available.
Inventors
- 👤 Beverly W Keese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:11
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/28; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1391294A
Cited
US1559617A
Cited
US1645224A
Cited
US1849144A
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US1990209A
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US1961809A
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US2244225A
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US2192078A
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US2241002A
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US2140687A
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US2169440A
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US2245078A
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US2317957A
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US2284251A
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US2276000A
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US2448822A
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US2448662A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |