Patent US3051504A successfully refreshed from Google Patents.
US3051504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer with vertically adjustable frame
Assignee: Individual
•
Filing: 1959-12-24
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Granted: 1962-08-28
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Expires: 1979-12-24
Abstract
No abstract record available.
Inventors
- 👤 Bruvold Harold Perry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:55
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/02; B60P1/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2621942A
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US2660443A
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US2787476A
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US2762631A
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US2767997A
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US2781529A
Cited
US2806710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-27 | 1966-02-26 | 1966-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-27 | 1970-02-26 | 1970-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-27 | 1974-02-26 | 1974-08-28 | $7700.00 | Window Closed / Lapsed |