Patent US2638992A successfully refreshed from Google Patents.
US2638992A
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US
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Gas turbine power control
Assignee: Curtiss Wright Corp
•
Filing: 1946-07-12
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Granted: 1953-05-19
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Expires: 1966-07-12
Abstract
No abstract record available.
Inventors
- 👤 Wilton G Lundquist
- 👤 William T Stark
- 👤 William C Schaffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:51
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/26; F02C9/28; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S74/00; Y10S74/02
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) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |