US2731276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supplemental wheel assembly for vehicles
Assignee: Individual
•
Filing: 1950-09-29
•
Granted: 1956-01-17
•
Expires: 1970-09-29
Abstract
No abstract record available.
Inventors
- 👤 Harold H Cross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:44
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/06; B62D53/068; B62D53/08; B62D53/0857; B62D53/0864
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
GB116159A
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US1934670A
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US2135291A
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US2373398A
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US2413212A
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US2431331A
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US2397296A
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US2523375A
Cited
US2525506A
Cited
US2534575A
Cited
US2662781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |