US2659528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine compressor system
Assignee: Lockheed Martin Corp
•
Filing: 1948-09-29
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Granted: 1953-11-17
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Expires: 1968-09-29
Abstract
No abstract record available.
Inventors
- 👤 Nathan C Price
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:36
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0261; F02; F02C; F02C7/00; F02C7/04; F04D19/00; F04D19/02; F04D19/026; F04D21/00; F04D25/00; F04D25/02; F04D25/022; Y; Y02; Y02B; Y02B30/00; Y02B30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2405723A
Cited
US1947477A
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GB505829A
Cited
US2263434A
Cited
US2409176A
Cited
US2346032A
Cited
US2461931A
Cited
US2528635A
Cited
US2435236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |