US2474518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal-combustion engine oil cooling means
Assignee: Caterpillar Inc
•
Filing: 1944-03-31
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Granted: 1949-06-28
•
Expires: 1964-03-31
Abstract
No abstract record available.
Inventors
- 👤 James M Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:20
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/08; Y; Y10; Y10S; Y10S165/00; Y10S165/916
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1934385A
Cited
GB316980A
Cited
US1904407A
Cited
US1972467A
Cited
US2171817A
Cited
US2206418A
Cited
US2260594A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-27 | 1952-12-27 | 1953-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-27 | 1956-12-27 | 1957-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-27 | 1960-12-27 | 1961-06-28 | $7700.00 | Window Closed / Lapsed |