Patent US2992750A successfully refreshed from Google Patents.
US2992750A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic unloading trailer
Assignee: Individual
•
Filing: 1958-01-02
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Granted: 1961-07-18
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Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 Harold A Brock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:57
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1095679A
Cited
US1249257A
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US1212190A
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US1346152A
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US1632204A
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US2513855A
Cited
US2547601A
Cited
US2678234A
Cited
US2823817A
Cited
US2812088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |