Patent US2493918A successfully refreshed from Google Patents.
US2493918A
Expired / Lapsed
US
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Harvester with means for conversion from chopper to windrower
Assignee: Deere Manufacturing Co
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Filing: 1944-02-03
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Granted: 1950-01-10
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Expires: 1964-02-03
Abstract
No abstract record available.
Inventors
- 👤 George B Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:50
CPC Classifications
A; A01; A01F; A01F29/00; A01F29/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1170616A
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US1799306A
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US2114580A
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US2253794A
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US2253633A
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US2347907A
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US2349386A
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US2431477A
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US2901092A
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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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |