US2468388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for clutch and brake devices
Assignee: Individual
•
Filing: 1947-06-16
•
Granted: 1949-04-26
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Expires: 1967-06-16
Abstract
No abstract record available.
Inventors
- 👤 Wilson John Hart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:43
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/02; F16D65/10; B; B66; B66D; B66D5/00; B66D5/02; B66D5/023; F16D13/00; F16D13/20; F16D65/78; F16D65/80; F16D65/813
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) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |