Patent US2803938A successfully refreshed from Google Patents.
US2803938A
Expired / Lapsed
US
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Cotton picker unit with specific housing
Assignee: Deere Manufacturing Co
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Filing: 1955-02-23
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Granted: 1957-08-27
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Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Fred A Thomann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:04
CPC Classifications
A; A01; A01D; A01D46/00; A01D46/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-26 | 1961-02-25 | 1961-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-26 | 1965-02-25 | 1965-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-26 | 1969-02-25 | 1969-08-27 | $7700.00 | Window Closed / Lapsed |