Patent US2488174A successfully refreshed from Google Patents.
US2488174A
Expired / Lapsed
US
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Air flow inducing system for aircooled internal-combustion engines
Assignee: Consolidated Vultee Aircraft Corp
•
Filing: 1946-08-27
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Granted: 1949-11-15
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Expires: 1966-08-27
Abstract
No abstract record available.
Inventors
- 👤 William A Clegern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:01
CPC Classifications
F; F01; F01P; F01P7/00; F01P7/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-14 | 1953-05-16 | 1953-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-14 | 1957-05-16 | 1957-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-14 | 1961-05-16 | 1961-11-15 | $7700.00 | Window Closed / Lapsed |