US3061029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling mechanism for tractors
Assignee: Individual
•
Filing: 1958-12-31
•
Granted: 1962-10-30
•
Expires: 1978-12-31
Abstract
No abstract record available.
Inventors
- 👤 Pryor Herbert George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:54
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/58; B60D1/62; B62; B62D; B62D49/00; B62D49/06; B62D49/0621; B62D49/0642; B62D53/00; B62D53/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR605826A
Cited
US1079475A
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US1377497A
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US1607962A
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US2347882A
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US2594695A
Cited
US2614644A
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US2638998A
Cited
US2727581A
Cited
US2833557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |