US3030769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ramjet variable area exit nozzle
Assignee: Individual
•
Filing: 1953-02-25
•
Granted: 1962-04-24
•
Expires: 1973-02-25
Abstract
No abstract record available.
Inventors
- 👤 William C Badders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2464724A
Cited
US2540594A
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US2648192A
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US2630673A
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US2943821A
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US2692800A
Cited
US2780424A
Cited
US2651172A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |