US2810486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unloading end gate for vehicles
Assignee: DUNHAM CO
•
Filing: 1954-07-19
•
Granted: 1957-10-22
•
Expires: 1974-07-19
Abstract
No abstract record available.
Inventors
- 👤 Byron G Elton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:54
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1567690A
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US1961587A
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US2002993A
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US2166846A
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US2258988A
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US2569161A
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US2541538A
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US2643014A
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US2711836A
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US2760658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |