US2831307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachable two-row tractor mounted corn picker
Assignee: Minneapolis Moline Co
•
Filing: 1953-11-13
•
Granted: 1958-04-22
•
Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Korsmo Alfred
- 👤 Ronning Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:27
CPC Classifications
A; A01; A01D; A01D45/00; A01D45/02; A01D45/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2011925A
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US1925077A
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US1948917A
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US2160486A
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US2379803A
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US2513941A
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US2507711A
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US2554198A
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US2518302A
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US2641887A
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US2565815A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |