US2548626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track shoe
Assignee: ZF Active Safety US Inc
•
Filing: 1944-03-22
•
Granted: 1951-04-10
•
Expires: 1964-03-22
Abstract
No abstract record available.
Inventors
- 👤 Charles W Sinclair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:35
CPC Classifications
B; B21; B21K; B21K23/00; B21K23/02; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49448; Y10T29/49449; Y10T29/49826; Y10T29/49863; Y10T29/49865; Y10T29/49879
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2039012A
Cited
US2067269A
Cited
US2211897A
Cited
US2234927A
Cited
US2290109A
Cited
US2321202A
Cited
US2353124A
Cited
US2366450A
Cited
US2422483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |