US3027711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scoop diffuser for use on ram jets for securing isentropic compression of a supersonic stream
Assignee: Individual
•
Filing: 1950-02-07
•
Granted: 1962-04-03
•
Expires: 1970-02-07
Abstract
No abstract record available.
Inventors
- 👤 Randolph S Rae
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:25
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02K; F02K7/00; F02K7/10; Y; Y10; Y10T; Y10T137/00; Y10T137/0536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2439273A
Cited
US1069694A
Cited
US2352790A
Cited
US2632295A
Cited
US2474143A
Cited
US2503973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |