Patent US2675809A successfully refreshed from Google Patents.
US2675809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combine having automatic leveling
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
•
Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:24
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/28; A01D75/282
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US566494A
Cited
US1310759A
Cited
US894439A
Cited
US915688A
Cited
US1122803A
Cited
US1621194A
Cited
GB502817A
Cited
US2241542A
Cited
US2266805A
Cited
US2361601A
Cited
US2395163A
Cited
US2588088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |