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Patent US2636665A successfully refreshed from Google Patents.
US2636665A
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Gas turbine engine
Assignee: Rolls Royce PLC
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Filing: 1948-03-08
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Granted: 1953-04-28
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Expires: 1968-03-08
Abstract
No abstract record available.
Inventors
- 👤 Lombard Adrian Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:14
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/321; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2084463A
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US2117131A
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DE665762C
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US2401826A
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US2409176A
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US2473356A
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US2435557A
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US2435528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |