US2722874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draft and power control for agricultural implements
Assignee: Deere and Co
•
Filing: 1952-01-10
•
Granted: 1955-11-08
•
Expires: 1972-01-10
Abstract
No abstract record available.
Inventors
- 👤 Edward C Bopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:04
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/111; A01B63/1117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2356231A
Cited
US2366155A
Cited
GB599020A
Cited
US2477710A
Cited
US2631514A
Cited
US2631515A
Cited
US2540429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |