US2580001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooling apparatus for vehicle wheels
Assignee: Dunlop Rubber Co Ltd
•
Filing: 1949-09-20
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Granted: 1951-12-25
•
Expires: 1969-09-20
Abstract
No abstract record available.
Inventors
- 👤 Butler Henry James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:36
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; B; B60; B60B; B60B19/00; B60B19/10; B64; B64C; B64C25/00; B64C25/32; B64C25/34; B64C25/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806366A
Cited
US2205714A
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US2042750A
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FR779937A
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US2106702A
Cited
US2248684A
Cited
DE695110C
Cited
US2207724A
Cited
US2392443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-24 | 1955-06-25 | 1955-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-24 | 1959-06-25 | 1959-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-24 | 1963-06-25 | 1963-12-25 | $7700.00 | Window Closed / Lapsed |