Patent US2935140A successfully refreshed from Google Patents.
US2935140A
Expired / Lapsed
US
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Combination weeding and cultivating attachment for a towing vehicle
Assignee: Individual
•
Filing: 1957-07-03
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Granted: 1960-05-03
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Expires: 1977-07-03
Abstract
No abstract record available.
Inventors
- 👤 Abner P Talbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:08
CPC Classifications
A; A01; A01B; A01B39/00; A01B39/12; A01B39/18; A01B39/20; A01B39/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AU512326A
Cited
US2161428A
Cited
US2595537A
Cited
US2592097A
Cited
US2706439A
Cited
US2723611A
Cited
US2791952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |