US2580480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Farm tractor
Assignee: Allis Chalmers Corp
•
Filing: 1948-04-02
•
Granted: 1952-01-01
•
Expires: 1968-04-02
Abstract
No abstract record available.
Inventors
- 👤 Walter F Strehlow
- 👤 Charles T O'harrow
- 👤 George W Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
A; A01; A01B; A01B51/00; A01B51/02; A01B51/026; B; B62; B62D; B62D49/00; B62D49/06; B62D49/065; Y; Y10; Y10S; Y10S180/00; Y10S180/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1566229A
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US1782992A
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US2074685A
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US2066666A
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US2275891A
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US2287438A
Cited
US2378615A
Cited
US2385690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |