US2054403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil cooling system
Assignee: Fedders Manufacturing Co Inc
•
Filing: 1931-01-27
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Granted: 1936-09-15
•
Expires: 1951-01-27
Abstract
No abstract record available.
Inventors
- 👤 Henry M Yeager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:05
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/02; F28F9/0234; F01; F01P; F01P11/00; F01P11/08; Y; Y10; Y10S; Y10S60/00; Y10S60/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-09-15 | 1940-03-16 | 1940-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-15 | 1944-03-16 | 1944-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-15 | 1948-03-16 | 1948-09-15 | $7700.00 | Window Closed / Lapsed |