US2936818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat structure
Assignee: Deere and Co
•
Filing: 1957-04-08
•
Granted: 1960-05-17
•
Expires: 1977-04-08
Abstract
No abstract record available.
Inventors
- 👤 Roy E Harrington
- 👤 Bernard M Silverberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:56
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/502; B60N2/505; B60N2/506; B60N2/507; B60N2/54; B60N2/544
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB627452A
Cited
US2432554A
Cited
US2663355A
Cited
US2719711A
Cited
DE833455C
Cited
DE859565C
Cited
US2783822A
Cited
FR1133986A
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 |