US2680951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion apparatus for burning particles of solid or heavy liquid fuel in a fast moving stream
Assignee: Power Jets Research and Development Ltd
•
Filing: 1948-04-09
•
Granted: 1954-06-15
•
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 06:57
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/26
Claims Analysis
Total Claims: 0
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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 |