Patent US2901844A successfully refreshed from Google Patents.
US2901844A
Expired / Lapsed
US
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Auxiliary wheeled support for vehicles
Assignee: Allis Chalmers Corp
•
Filing: 1955-03-31
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Granted: 1959-09-01
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Expires: 1975-03-31
Abstract
No abstract record available.
Inventors
- 👤 Harvey W Rockwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:17
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/003; B; B62; B62D; B62D53/00; B62D53/02; B62D53/04; B62D53/08; B62D53/0857; E02F3/00; E02F3/04; E02F3/64; E02F3/6454; E02F3/65
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) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |