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Patent US2839980A successfully refreshed from Google Patents.
US2839980A
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Construction for sectional implements
Assignee: Minneapolis Moline Co
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Filing: 1953-10-27
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Granted: 1958-06-24
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Expires: 1973-10-27
Abstract
No abstract record available.
Inventors
- 👤 Evans Thomas
- 👤 Cleveland Rex
- 👤 Robert E Beach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:45
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/06; A01B35/00; A01B35/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US578202A
Cited
GB554033A
Cited
US2363749A
Cited
US2336152A
Cited
US2617343A
Cited
US2617342A
Cited
US2694279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |