Patent US2982093A successfully refreshed from Google Patents.
US2982093A
Expired / Lapsed
US
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Compound ram jet turbo-rocket engines
Assignee: Napier Turbochargers Ltd
•
Filing: 1958-08-26
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Granted: 1961-05-02
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Expires: 1978-08-26
Abstract
No abstract record available.
Inventors
- 👤 Belcher Bryan Leslie
- 👤 Blyth Jack Vallis
- 👤 Buckingham David Edwin James
- 👤 Davies Alan Leslie
- 👤 Chamberlin Reginald He Douglas
- 👤 Fletcher Alan Leslie Roy
- 👤 Morris Ronald Edward
- 👤 Mansfield Geoffrey Char Gerald
- 👤 Upton George Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:02
CPC Classifications
F; F02; F02K; F02K7/00; F02K7/10; F02K7/16; Y; Y10; Y10T; Y10T137/00; Y10T137/0536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2582848A
Cited
US2604278A
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US2873576A
Cited
GB749009A
Cited
US2896408A
Cited
US2778564A
Cited
US2867978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-01 | 1964-10-31 | 1965-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-01 | 1968-10-31 | 1969-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-01 | 1972-10-31 | 1973-05-02 | $7700.00 | Window Closed / Lapsed |