US2667033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion apparatus for operation in fast-moving air streams
Assignee: Power Jets Research and Development Ltd
•
Filing: 1947-12-23
•
Granted: 1954-01-26
•
Expires: 1967-12-23
Abstract
No abstract record available.
Inventors
- 👤 Ashwood Peter Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:19
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/28; F23R3/02; F23R3/04; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US972504A
Cited
US1542294A
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US2164225A
Cited
US2404335A
Cited
US2556161A
Cited
US2529506A
Cited
GB588572A
Cited
US2526122A
Cited
US2503006A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-25 | 1957-07-27 | 1958-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-25 | 1961-07-27 | 1962-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-25 | 1965-07-27 | 1966-01-26 | $7700.00 | Window Closed / Lapsed |