US2225234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal control of internal combustion engines
Assignee: Fairbanks Morse and Co
•
Filing: 1938-12-08
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Granted: 1940-12-17
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Expires: 1958-12-08
Abstract
No abstract record available.
Inventors
- 👤 Wesley W Schettler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:48
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P11/16; F01M; F01M11/00; F01M11/10; F01M5/00; F01P7/00; F01P7/14; F01P7/16; F02; F02B; F02B77/00; F02B77/08; F02B77/089
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) | 1943-12-17 | 1944-06-17 | 1944-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-12-17 | 1948-06-17 | 1948-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-12-17 | 1952-06-17 | 1952-12-17 | $7700.00 | Window Closed / Lapsed |