US2470667A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil cooler
Assignee: United Aircraft Products Inc
•
Filing: 1944-01-10
•
Granted: 1949-05-17
•
Expires: 1964-01-10
Abstract
No abstract record available.
Inventors
- 👤 Edward C Warrick
- 👤 Cruzan Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:47
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/08
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR593062A
Cited
US1860731A
Cited
US1992796A
Cited
US2007590A
Cited
GB460047A
Cited
US2406203A
Cited
US2222496A
Cited
US2279285A
Cited
US2352704A
Cited
US2307300A
Cited
US2275576A
Cited
US2291637A
Cited
US2343867A
Cited
US2288599A
Cited
US2322047A
Cited
US2344207A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-16 | 1952-11-15 | 1953-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-16 | 1956-11-15 | 1957-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-16 | 1960-11-15 | 1961-05-17 | $7700.00 | Window Closed / Lapsed |