Patent US2761699A successfully refreshed from Google Patents.
US2761699A
Expired / Lapsed
US
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Trailer hitch pin structure
Assignee: Individual
•
Filing: 1951-04-11
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Granted: 1956-09-04
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Expires: 1971-04-11
Abstract
No abstract record available.
Inventors
- 👤 William E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:28
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/061; B62D53/062; B62D53/065; B62D53/08; B62D53/0842; B62D53/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1591857A
Cited
US1953705A
Cited
US1977013A
Cited
US1992164A
Cited
US2318038A
Cited
US2441710A
Cited
US2494799A
Cited
US2568283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |