US2663239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-lift tractor hitch for earth working implements
Assignee: TOWNER Manufacturing Co
•
Filing: 1946-12-11
•
Granted: 1953-12-22
•
Expires: 1966-12-11
Abstract
No abstract record available.
Inventors
- 👤 Howard B Rapp
- 👤 Loyd E Heckathorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:56
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077942A
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US2159669A
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US2322342A
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US2398147A
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US2312258A
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US2337801A
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US2414114A
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US2349257A
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US2441630A
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US2575622A
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US2456693A
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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) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |