US2031640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor planter
Assignee: Case LLC
•
Filing: 1934-09-08
•
Granted: 1936-02-25
•
Expires: 1954-09-08
Abstract
No abstract record available.
Inventors
- 👤 Geraldson Gerald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:31
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-02-24 | 1939-08-26 | 1940-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-02-24 | 1943-08-26 | 1944-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-02-24 | 1947-08-26 | 1948-02-25 | $7700.00 | Window Closed / Lapsed |