US2967575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor-implement power control system
Assignee: Deere and Co
•
Filing: 1956-08-02
•
Granted: 1961-01-10
•
Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Shane Wallace H Du
- 👤 Edward H Fletcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:24
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/1006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734438A
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US2334862A
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US2416373A
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US2368125A
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US2713298A
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US2678508A
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US2766536A
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US2680401A
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US2678596A
Cited
GB738881A
Cited
US2711633A
Cited
US2804034A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-10 | 1964-07-11 | 1965-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-10 | 1968-07-11 | 1969-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-10 | 1972-07-11 | 1973-01-10 | $7700.00 | Window Closed / Lapsed |