US2639581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for burning fuel in a high velocity gas stream
Assignee: Power Jets Research and Development Ltd
•
Filing: 1945-11-26
•
Granted: 1953-05-26
•
Expires: 1965-11-26
Abstract
No abstract record available.
Inventors
- 👤 Cohen Henry
- 👤 Darth John Henry Hamilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:45
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/16; F23R3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1283109A
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US2280835A
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US2332866A
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US2404334A
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US2371889A
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US2409176A
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US2385833A
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US2402377A
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US2529506A
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US2395919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-25 | 1956-11-24 | 1957-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-25 | 1960-11-24 | 1961-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-25 | 1964-11-24 | 1965-05-26 | $7700.00 | Window Closed / Lapsed |