US2580501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Freight loading and unloading truck
Assignee: Individual
•
Filing: 1949-04-14
•
Granted: 1952-01-01
•
Expires: 1969-04-14
Abstract
No abstract record available.
Inventors
- 👤 Frank P Anderson
- 👤 Edwin E Anderson
- 👤 Raymond L Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:36
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/64; B60P1/6418; B60P1/6427
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1870573A
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US1885399A
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US2016130A
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US2089717A
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US2298982A
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US2437479A
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US2478658A
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US2508740A
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US2534156A
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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) | 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 |