Patent US2421037A successfully refreshed from Google Patents.
US2421037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crop conveyor mechanism
Assignee: Minneapolis Moline Power Co
•
Filing: 1945-05-21
•
Granted: 1947-05-27
•
Expires: 1965-05-21
Abstract
No abstract record available.
Inventors
- 👤 Ronning Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:12
CPC Classifications
A; A01; A01D; A01D61/00; A01D61/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1972031A
Cited
US1967693A
Cited
US1959689A
Cited
US2033890A
Cited
US2122673A
Cited
US2270471A
Cited
US2377805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-05-26 | 1950-11-25 | 1951-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-05-26 | 1954-11-25 | 1955-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-05-26 | 1958-11-25 | 1959-05-27 | $7700.00 | Window Closed / Lapsed |