US2961275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle wheel anti-skid device
Assignee: Dunlop Rubber Co Ltd
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Filing: 1957-04-30
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Granted: 1960-11-22
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Expires: 1977-04-30
Abstract
No abstract record available.
Inventors
- 👤 Bent William Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:21
CPC Classifications
B; B60; B60T; B60T8/00; B60T8/32; B60T8/72; B60T8/74; Y; Y10; Y10T; Y10T137/00; Y10T137/0971; Y10T137/0989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-22 | 1964-05-23 | 1964-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-22 | 1968-05-23 | 1968-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-22 | 1972-05-23 | 1972-11-22 | $7700.00 | Window Closed / Lapsed |