Patent US2854819A successfully refreshed from Google Patents.
US2854819A
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US
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Apparatus for igniting fuel in a fastmoving hot gas stream by means of a spontaneously ignitable pilot fuel
Assignee: Power Jets Research and Development Ltd
•
Filing: 1951-10-24
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Granted: 1958-10-07
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Expires: 1971-10-24
Abstract
No abstract record available.
Inventors
- 👤 Walker Daniel Norman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:32
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/26; F02C7/264
Claims Analysis
Total Claims: 0
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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) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |