US2519002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vertically adjustable trailer
Assignee: ENSLEN
•
Filing: 1948-10-26
•
Granted: 1950-08-15
•
Expires: 1968-10-26
Abstract
No abstract record available.
Inventors
- 👤 Everett L Stemen
- 👤 Francis L Enslen
- 👤 Springer Oman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:16
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/02; B60P1/027; B60D; B60D1/00; B60D1/24; B60D1/42; B60D1/46; B60D1/465
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1105228A
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US1633473A
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US2002605A
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US2196338A
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US2227762A
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US2328343A
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US2297992A
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US2385253A
Cited
US2411009A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |