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Patent US2726879A successfully refreshed from Google Patents.
US2726879A
Expired / Lapsed
US
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Semispherical fifth wheel support for semitrailer
Assignee: Individual
•
Filing: 1952-08-04
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Granted: 1955-12-13
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Expires: 1972-08-04
Abstract
No abstract record available.
Inventors
- 👤 Vaillant Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:04
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807; B62D53/0835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1078801A
Cited
US1211825A
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US1261261A
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US1399250A
Cited
GB210225A
Cited
GB215422A
Cited
GB221035A
Cited
FR731501A
Cited
US2084291A
Cited
US2385596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |