US2867480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless tread and track assembly
Assignee: Individual
•
Filing: 1957-10-31
•
Granted: 1959-01-06
•
Expires: 1977-10-31
Abstract
No abstract record available.
Inventors
- 👤 Walton W Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:24
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/18; B62D55/24; B62D55/247; B63; B63H; B63H1/00; B63H1/30; B63H1/34; B63H1/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734476A
Cited
US784792A
Cited
US2306577A
Cited
US2364857A
Cited
US2661251A
Cited
US2652289A
Cited
US2714011A
Cited
US2652290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |