Patent US2852009A successfully refreshed from Google Patents.
US2852009A
Expired / Lapsed
US
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Cooling liquid circulating system for engines
Assignee: Motors Liquidation Co
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Filing: 1952-11-19
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Granted: 1958-09-16
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Expires: 1972-11-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph D Turlay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:12
CPC Classifications
F; F01; F01P; F01P5/00; F01P5/10; F01P5/12; F01P2070/00; F01P7/00; F01P7/14; F01P7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1386816A
Cited
US1461711A
Cited
US1519155A
Cited
US1766858A
Cited
US2157597A
Cited
US2186080A
Cited
US2244932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |