US2479421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wheel attachment for transporting vehicles
Assignee: Individual
•
Filing: 1944-11-06
•
Granted: 1949-08-16
•
Expires: 1964-11-06
Abstract
No abstract record available.
Inventors
- 👤 William H Sempe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:19
CPC Classifications
B; B62; B62D; B62D61/00; B62D61/12; B62D49/00; B62D49/06; B62D49/0621
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US337617A
Cited
US374200A
Cited
FR496784A
Cited
US1433486A
Cited
US1447893A
Cited
FR544888A
Cited
DE484114C
Cited
DE510534C
Cited
FR851918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |