US2756833A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power take-off mechanism for tractors
Assignee: Individual
•
Filing: 1952-03-24
•
Granted: 1956-07-31
•
Expires: 1972-03-24
Abstract
No abstract record available.
Inventors
- 👤 Robert C Chattin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:04
CPC Classifications
B; B60; B60K; B60K17/00; B60K17/34; B60K17/28; B60K25/00; B60K25/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2269980A
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US2328838A
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US2496469A
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US2533804A
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US2551725A
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US2528784A
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US2624416A
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US2618350A
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US2622383A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-31 | 1960-01-30 | 1960-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-31 | 1964-01-30 | 1964-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-31 | 1968-01-30 | 1968-07-31 | $7700.00 | Window Closed / Lapsed |