US2646738A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivator
Assignee: Individual
•
Filing: 1951-06-18
•
Granted: 1953-07-28
•
Expires: 1971-06-18
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Denning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:12
CPC Classifications
A; A01; A01B; A01B35/00; A01B35/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1740841A
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US1812904A
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US1734408A
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US1765143A
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US1831576A
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US2029250A
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US2029249A
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US2041616A
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FR917848A
Cited
US2385950A
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GB572487A
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US2487847A
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US2562486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |