US2919754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor implement connection
Assignee: Allis Chalmers Corp
•
Filing: 1955-07-11
•
Granted: 1960-01-05
•
Expires: 1975-07-11
Abstract
No abstract record available.
Inventors
- 👤 Maynard E Walberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/04; A01B59/041; A01B63/00; A01B63/14; A01B63/145
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT90755B
Cited
US2345741A
Cited
US2420530A
Cited
US2637260A
Cited
US2620716A
Cited
US2693969A
Cited
US2723613A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |