US2855753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ramjet fuel control having a main and probe diffuser
Assignee: RTX Corp
•
Filing: 1953-10-28
•
Granted: 1958-10-14
•
Expires: 1973-10-28
Abstract
No abstract record available.
Inventors
- 👤 George H Mclafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:45
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2736166A
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GB578311A
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US2606420A
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US2654995A
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US2688845A
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US2669837A
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US2683348A
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US2705046A
Cited
US2679726A
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US2687612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |