US1676961A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of and apparatus for cooling internal-combustion engines
Assignee: Harrison Radiator Corp
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Filing: 1923-12-17
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Granted: 1928-07-10
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Expires: 1943-12-17
Abstract
No abstract record available.
Inventors
- 👤 Wellington W Muir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:44
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/14; F01P7/16; F01P2025/00; F01P2025/08; F01P2025/50
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) | 1931-07-10 | 1932-01-09 | 1932-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-07-10 | 1936-01-09 | 1936-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-07-10 | 1940-01-09 | 1940-07-10 | $7700.00 | Window Closed / Lapsed |