US2418385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for internalcombustion engines
Assignee: Individual
•
Filing: 1945-05-16
•
Granted: 1947-04-01
•
Expires: 1965-05-16
Abstract
No abstract record available.
Inventors
- 👤 Frederic S Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:02
CPC Classifications
F; F01; F01P; F01P3/00; F01P3/02; F02; F02B; F02B2275/00; F02B2275/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316912A
Cited
US1384281A
Cited
US1416170A
Cited
US1617845A
Cited
US1780809A
Cited
US2030894A
Cited
US2190394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-31 | 1950-09-30 | 1951-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-31 | 1954-09-30 | 1955-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-31 | 1958-09-30 | 1959-04-01 | $7700.00 | Window Closed / Lapsed |