Patent US2803357A successfully refreshed from Google Patents.
US2803357A
Expired / Lapsed
US
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Vehicle pusher unloader
Assignee: Individual
•
Filing: 1954-07-02
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Granted: 1957-08-20
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Expires: 1974-07-02
Abstract
No abstract record available.
Inventors
- 👤 Ray C Ronfeldt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:41
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1962228A
Cited
US2365771A
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US2480527A
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US2557003A
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US2669366A
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US2657009A
Cited
US2712388A
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US2696313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |