US3495605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annular internal compression supersonic air inlet
Assignee: Boeing Co
•
Filing: 1965-09-29
•
Granted: 1970-02-17
•
Expires: 1985-09-29
Abstract
No abstract record available.
Inventors
- 👤 Daniel W Gunnarson
- 👤 Clarence S Howell Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:37
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)
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US2938334A
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US2999656A
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US3054255A
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US3077735A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |