US2952122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel system for ducted rocket ramjet power plants
Assignee: Phillips Petroleum Co
•
Filing: 1955-04-29
•
Granted: 1960-09-13
•
Expires: 1975-04-29
Abstract
No abstract record available.
Inventors
- 👤 Homer M Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:07
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/10; F02K7/18; F02K9/00; F02K9/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1196635A
Cited
US1273466A
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US1828784A
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US2207552A
Cited
US2176453A
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US2419866A
Cited
US2385833A
Cited
US2540594A
Cited
GB628366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-13 | 1964-03-14 | 1964-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-13 | 1968-03-14 | 1968-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-13 | 1972-03-14 | 1972-09-13 | $7700.00 | Window Closed / Lapsed |