US3007531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plow reversible by vane type hydraulic motor
Assignee: Deere and Co
•
Filing: 1958-07-17
•
Granted: 1961-11-07
•
Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 Walter H Silver
- 👤 Bruno B Johannsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:31
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/36; A01B3/40; A01B3/42; A01B3/421
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE548674A
Cited
US2666376A
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US2698563A
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US2714345A
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FR1130163A
Cited
US2900032A
Cited
US2959232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |