Patent US2765862A successfully refreshed from Google Patents.
US2765862A
Expired / Lapsed
US
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Chain and worm gear drive tractor
Assignee: TUCKER AND SONS
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Filing: 1954-08-30
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Granted: 1956-10-09
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Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Emmitt M Tucker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:29
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/04; B62; B62D; B62D12/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1194085A
Cited
FR961583A
Cited
US652648A
Cited
GB190501929A
Cited
US858658A
Cited
US1085350A
Cited
US1285841A
Cited
US1373981A
Cited
CH100849A
Cited
GB478857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |