US2640404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plow
Assignee: Deere and Co
•
Filing: 1947-11-10
•
Granted: 1953-06-02
•
Expires: 1967-11-10
Abstract
No abstract record available.
Inventors
- 👤 Keith R Scholfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:15
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/06; A01B59/065; A01B3/00; A01B3/36; A01B3/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1807731A
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US1366842A
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US1688615A
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US1864639A
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US1980470A
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US2249861A
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US2319670A
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US2345741A
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US2302502A
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US2398147A
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US2351473A
Cited
US2379225A
Cited
US2567736A
Cited
US2438553A
Cited
GB628907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |