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US2805545A
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Methods of and devices for promoting the filling of combustion chambers and facilitating the ignition in pulsatory reaction jets
Assignee: Individual
•
Filing: 1952-10-31
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Granted: 1957-09-10
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Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Wilman Sigismond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:14
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/02; F02K7/04; F23; F23R; F23R7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR959645A
Cited
DE515635C
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US2628471A
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US2523308A
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US2523379A
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US2670597A
Cited
FR942386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |