US2670861A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gravity unloading apparatus for vehicles
Assignee: Individual
•
Filing: 1950-05-26
•
Granted: 1954-03-02
•
Expires: 1970-05-26
Abstract
No abstract record available.
Inventors
- 👤 Leo K Fondriest
- 👤 James E Fondriest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:48
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4407
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1467504A
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FR571580A
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US1520175A
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AU1227928A
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US2033243A
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US2127007A
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US2350641A
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US2391412A
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CH256991A
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US2469321A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |