US2672013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine cooling system
Assignee: Curtiss Wright Corp
•
Filing: 1950-06-30
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Granted: 1954-03-16
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Expires: 1970-06-30
Abstract
No abstract record available.
Inventors
- 👤 Wilton G Lundquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:47
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F01D5/066; F01D5/08; F01D5/081; F01D5/084; F01D9/00; F01D9/06; F01D9/065; F02; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1640784A
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US2035482A
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US2117131A
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GB504781A
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US2414788A
Cited
US2465846A
Cited
US2584899A
Cited
US2591399A
Cited
GB635890A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-15 | 1957-09-14 | 1958-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-15 | 1961-09-14 | 1962-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-15 | 1965-09-14 | 1966-03-16 | $7700.00 | Window Closed / Lapsed |