US2484689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Material unloading and conveying mechanism for trucks
Assignee: BEATRICE DAVIS
•
Filing: 1945-06-16
•
Granted: 1949-10-11
•
Expires: 1965-06-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:30
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US837170A
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US1553597A
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US2102432A
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US2093300A
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US2107682A
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US2293486A
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US2367784A
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US2325492A
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US2394006A
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US2390268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |