Patent US2019476A successfully refreshed from Google Patents.
US2019476A
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Temperature controlling means for internal combustion engines
Assignee: RAYMOND S PRUITT
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Filing: 1933-01-25
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Granted: 1935-11-05
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Expires: 1953-01-25
Abstract
No abstract record available.
Inventors
- 👤 Dalmar T Brownlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:01
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02; F01P7/04; F01P7/048; F01P5/00; F01P5/10; F01P5/12; F01P7/14; F01P7/16; F01P7/164
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) | 1938-11-04 | 1939-05-06 | 1939-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-04 | 1943-05-06 | 1943-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-04 | 1947-05-06 | 1947-11-05 | $7700.00 | Window Closed / Lapsed |