Patent US4598422A successfully refreshed from Google Patents.
US2999656A
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Gas turbine engine with canted variable gap augmentary intake
Assignee: Rolls Royce PLC
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Filing: 1959-05-18
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Granted: 1961-09-12
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Expires: 1979-05-18
Abstract
No abstract record available.
Inventors
- 👤 Ward Peter Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:20
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/042; B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0041; B64C29/0075; Y; Y10; Y10T; Y10T137/00; Y10T137/0536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |