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US3417767A
Expired / Lapsed
US
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Self-restarting supersonic inlet
Assignee: Boeing North American Inc
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Filing: 1966-06-13
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Granted: 1968-12-24
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Expires: 1986-06-13
Abstract
No abstract record available.
Inventors
- 👤 Louis C Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:38
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/042; Y; Y10; Y10T; Y10T137/00; Y10T137/0536; Y10T137/0645
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2966028A
Cited
US2638738A
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US2931167A
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US2969939A
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US3054255A
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US3163981A
Cited
US3067578A
Cited
US3175355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |