US2489522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brake drum cooling and silencing device
Assignee: Motors Liquidation Co
•
Filing: 1946-09-13
•
Granted: 1949-11-29
•
Expires: 1966-09-13
Abstract
No abstract record available.
Inventors
- 👤 Theron P Chase
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 00:57
CPC Classifications
F; F16; F16D; F16D65/00; F16D65/78; F16D65/82; F16D65/827
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE481521C
Cited
GB254561A
Cited
US1833413A
Cited
US1832274A
Cited
US1881002A
Cited
US1928079A
Cited
US2021369A
Cited
US2131614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |