US2957726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load supporting structure and attachment means for a tractor
Assignee: Allis Chalmers Corp
•
Filing: 1953-06-18
•
Granted: 1960-10-25
•
Expires: 1973-06-18
Abstract
No abstract record available.
Inventors
- 👤 Rector C Fergason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:13
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/04; B; B60; B60P; B60P1/00; B60P1/04; B60P1/30; B60P1/34
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-25 | 1964-04-25 | 1964-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-25 | 1968-04-25 | 1968-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-25 | 1972-04-25 | 1972-10-25 | $7700.00 | Window Closed / Lapsed |