US2658438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor mounting for agricultural implements
Assignee: Individual
•
Filing: 1950-07-11
•
Granted: 1953-11-10
•
Expires: 1970-07-11
Abstract
No abstract record available.
Inventors
- 👤 James H Seng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:13
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/10; A01B63/1006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1807731A
Cited
US1419014A
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US1505201A
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US1663249A
Cited
US1977422A
Cited
US2198196A
Cited
US2477994A
Cited
US2593176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |