US2599879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust induced cooling system for gas turbines
Assignee: Power Jets Research and Development Ltd
•
Filing: 1945-08-23
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Granted: 1952-06-10
•
Expires: 1965-08-23
Abstract
No abstract record available.
Inventors
- 👤 Walker Daniel Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:08
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18; F02K; F02K1/00; F02K1/78; F02K1/82; F02K1/822; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB472334A
Cited
US2117131A
Cited
US2180168A
Cited
US2396911A
Cited
US2401941A
Cited
US2348748A
Cited
US2395262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |