US2765610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk harrow
Assignee: Deere and Co
•
Filing: 1951-08-02
•
Granted: 1956-10-09
•
Expires: 1971-08-02
Abstract
No abstract record available.
Inventors
- 👤 William P Oehler
- 👤 Charles H Youngberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:56
CPC Classifications
A; A01; A01B; A01B21/00; A01B21/08; A01B21/083
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1189890A
Cited
US1286986A
Cited
US2320624A
Cited
US2414114A
Cited
US2440550A
Cited
US2456693A
Cited
US2638726A
Cited
US2552307A
Cited
US2600331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |