US2960170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disk tillers
Assignee: Deere and Co
•
Filing: 1955-09-27
•
Granted: 1960-11-15
•
Expires: 1975-09-27
Abstract
No abstract record available.
Inventors
- 👤 John I Cantral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:50
CPC Classifications
A; A01; A01B; A01B23/00; A01B23/04; A01B23/046; A01B21/00; A01B21/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US197159A
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US340236A
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US368926A
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US555144A
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US604854A
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US1358939A
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US1747052A
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US2196347A
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US2184428A
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US2669171A
Cited
US2618213A
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US2662460A
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US2907396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |