US2581999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hemispherical combustion chamber end dome having cooling air deflecting means
Assignee: General Electric Co
•
Filing: 1946-02-01
•
Granted: 1952-01-08
•
Expires: 1966-02-01
Abstract
No abstract record available.
Inventors
- 👤 Walter L Blatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:51
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/04; F23R3/10; F02; F02C; F02C7/00; F02C7/04; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2432359A
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FR337447A
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DE376570C
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US2404335A
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US2361871A
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US2465525A
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US2475911A
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GB585763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |