US2943687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible earth working tiller
Assignee: Individual
•
Filing: 1957-05-02
•
Granted: 1960-07-05
•
Expires: 1977-05-02
Abstract
No abstract record available.
Inventors
- 👤 Merry Albert Berle
- 👤 Paul F Hastings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:19
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/02; A01B33/028; B; B62; B62D; B62D51/00; B62D51/04; B62D51/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2012434A
Cited
US2176261A
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US2477662A
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US2617343A
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US2765719A
Cited
US2847924A
Cited
US2847922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |