US2683539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power-driven tail-gate elevator
Assignee: LA Young Spring and Wire Corp
•
Filing: 1951-08-23
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Granted: 1954-07-13
•
Expires: 1971-08-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Quentin D Corley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:06
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/44; B60P1/4414
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US747899A
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US2391813A
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US2405054A
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US2418567A
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US2523723A
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US2469321A
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US2525424A
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US2527818A
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US2603454A
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US2626067A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |