US2474162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil cooler having automatic bimetal thermostat controlled shutter
Assignee: Garrett Corp
•
Filing: 1941-06-02
•
Granted: 1949-06-21
•
Expires: 1961-06-02
Abstract
No abstract record available.
Inventors
- 👤 Walter R Ramsaur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:24
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/08
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-20 | 1952-12-20 | 1953-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-20 | 1956-12-20 | 1957-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-20 | 1960-12-20 | 1961-06-21 | $7700.00 | Window Closed / Lapsed |