US2759310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural tool for tractors
Assignee: Individual
•
Filing: 1953-04-27
•
Granted: 1956-08-21
•
Expires: 1973-04-27
Abstract
No abstract record available.
Inventors
- 👤 Clarence E Newkirk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:50
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/023
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22627E
Cited
US2337801A
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US2568082A
Cited
US2607276A
Cited
US2618213A
Cited
US2601640A
Cited
US2617342A
Cited
US2583897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-21 | 1960-02-20 | 1960-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-21 | 1964-02-20 | 1964-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-21 | 1968-02-20 | 1968-08-21 | $7700.00 | Window Closed / Lapsed |