US2477931A
Expired / Lapsed
US
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Evaporative cooling system for aircraft having expansion means
Assignee: Garrett Corp
•
Filing: 1947-01-06
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Granted: 1949-08-02
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Expires: 1967-01-06
Abstract
No abstract record available.
Inventors
- 👤 Leighton S King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:42
CPC Classifications
F; F02; F02C; F02C6/00; F02C6/04; F02C6/06; B; B64; B64D; B64D13/00; B64D13/06; F02C7/00; F02C7/12; F02C7/16; F02C7/18; F02C7/185; B64D2013/0603; B64D2013/0614; B64D2013/0648; F25; F25B; F25B9/00; F25B9/002; F25B9/004; Y; Y02; Y02T; Y02T50/00; Y02T50/50; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US515585A
Cited
US2126266A
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US2391838A
Cited
US2124289A
Cited
US2304151A
Cited
US2453923A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |