US2968147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersonic diffuser with shock positioning means
Assignee: Boeing Co
•
Filing: 1957-04-23
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Granted: 1961-01-17
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Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard H Truly
- 👤 Leonard P Bonifaci
- 👤 Bernard F Beckelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:29
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/10; F02C; F02C7/00; F02C7/04; G; G01; G01M; G01M9/00; G01M9/02; G01M9/04; Y; Y10; Y10S; Y10S261/00; Y10S261/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE648878C
Cited
US2435990A
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US2663993A
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US2625010A
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US2763426A
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US2772620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |