Patent US2680951A successfully refreshed from Google Patents.
US2680951A
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Combustion apparatus for burning particles of solid or heavy liquid fuel in a fast moving stream
Assignee: Power Jets Research and Development Ltd
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Filing: 1948-04-09
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Granted: 1954-06-15
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Expires: 1968-04-09
Abstract
No abstract record available.
Inventors
- 👤 Winter Ernest Frederick
- 👤 Havemann Hans August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:24
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2097255A
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USRE23149E
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US1061469A
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US1418444A
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US1618808A
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US2409176A
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US2416389A
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US2368179A
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US2435836A
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US2458992A
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US2476507A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |