Patent US2650727A successfully refreshed from Google Patents.
US2650727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Swingable trailer ramp
Assignee: Individual
•
Filing: 1948-07-15
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Granted: 1953-09-01
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Expires: 1968-07-15
Abstract
No abstract record available.
Inventors
- 👤 William E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:38
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/061; B62D53/062; B62D53/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2131949A
Cited
US2173277A
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US2431436A
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US2441710A
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US2452789A
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US2443611A
Cited
US2449947A
Cited
US2530866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |