Patent US1998695A successfully refreshed from Google Patents.
US1998695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling system for internal combustion engines
Assignee: Motors Liquidation Co
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Filing: 1932-07-05
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Granted: 1935-04-23
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Expires: 1952-07-05
Abstract
No abstract record available.
Inventors
- 👤 James A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:12
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/14; F01P7/16; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3021; Y10T137/3024; Y10T137/304; Y10T137/3052; Y10T137/3068; Y10T137/7287; Y10T137/7313; Y10T137/7323
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) | 1938-04-22 | 1938-10-22 | 1939-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-04-22 | 1942-10-22 | 1943-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-04-22 | 1946-10-22 | 1947-04-23 | $7700.00 | Window Closed / Lapsed |