US2648270A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk plow wheeled frame
Assignee: Deere and Co
•
Filing: 1947-04-18
•
Granted: 1953-08-11
•
Expires: 1967-04-18
Abstract
No abstract record available.
Inventors
- 👤 Walter H Silver
- 👤 John I Cantral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:53
CPC Classifications
A; A01; A01B; A01B23/00; A01B23/04; A01B23/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US813446A
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US967093A
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US990641A
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US1226793A
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US1823508A
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US1944671A
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US2113556A
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US2245374A
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US2370374A
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US2376455A
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US2377410A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |