Patent US2685453A successfully refreshed from Google Patents.
US2685453A
Expired / Lapsed
US
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Automatic hitch for tractors
Assignee: Ford Motor Co
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Filing: 1952-01-18
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Granted: 1954-08-03
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Expires: 1972-01-18
Abstract
No abstract record available.
Inventors
- 👤 Emery E Kuhary
- 👤 Frederick D Sawyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:09
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/06; A01B59/061; A01B59/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1730077A
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US1900440A
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US2194623A
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US2381258A
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GB575650A
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US2444919A
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US2465641A
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US2527613A
Cited
US2459731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |