US2936649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control mechanism
Assignee: Deere and Co
•
Filing: 1958-03-31
•
Granted: 1960-05-17
•
Expires: 1978-03-31
Abstract
No abstract record available.
Inventors
- 👤 Richard A Wittren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:51
CPC Classifications
F; F16; F16H; F16H59/00; F16H59/02; F16H59/08; F16H59/12; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20012; Y10T74/20018; Y10T74/2014; Y10T74/20207; Y10T74/20238; Y10T74/20244; Y10T74/20372; Y10T74/20384
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1760710A
Cited
US2557480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |