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US3428336A
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US
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Boat trailer tongue extension apparatus
Assignee: JESSE B THURMAN
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Filing: 1968-02-26
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Granted: 1969-02-18
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Expires: 1988-02-26
Abstract
No abstract record available.
Inventors
- 👤 Jesse B Thurman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:14
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P3/1083
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2425838A
Cited
FR1091928A
Cited
US3032353A
Cited
US3083986A
Cited
US3155399A
Cited
US3252717A
Cited
US3284101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |