US2938334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supersonic inlet
Assignee: RTX Corp
•
Filing: 1957-12-23
•
Granted: 1960-05-31
•
Expires: 1977-12-23
Abstract
No abstract record available.
Inventors
- 👤 George H Mclafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:18
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/042; B; B64; B64D; B64D33/00; B64D33/02; B64D2033/0253; B64D2033/026; Y; Y10; Y10T; Y10T137/00; Y10T137/0536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR779655A
Cited
FR50033E
Cited
US2632295A
Cited
US2657575A
Cited
US2864236A
Cited
GB747705A
Cited
US2861419A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-31 | 1963-11-30 | 1964-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-31 | 1967-11-30 | 1968-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-31 | 1971-11-30 | 1972-05-31 | $7700.00 | Window Closed / Lapsed |