Patent US2953390A successfully refreshed from Google Patents.
US2953390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer construction
Assignee: Individual
•
Filing: 1957-05-22
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Granted: 1960-09-20
•
Expires: 1977-05-22
Abstract
No abstract record available.
Inventors
- 👤 John H Hogstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:13
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/002; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/067; B62D61/00; B62D61/12; B62D61/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US666733A
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US1106104A
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US2156876A
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US2391948A
Cited
US2493004A
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US2564702A
Cited
US2727758A
Cited
US2775466A
Cited
US2748965A
Cited
US2767999A
Cited
US2795432A
Cited
US2906358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |