US3021154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch
Assignee: Individual
•
Filing: 1959-07-31
•
Granted: 1962-02-13
•
Expires: 1979-07-31
Abstract
No abstract record available.
Inventors
- 👤 Edward B Hedgepeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:44
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/486; B60D1/01; B60D1/06; B60D1/24; B60D1/42; B60D1/44; B60D1/488
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1507651A
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US1539474A
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US1527722A
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US2255624A
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US2474296A
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US2692148A
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US2729470A
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US2846237A
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US2817542A
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US2828143A
Cited
US2952475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |