Patent US2920865A successfully refreshed from Google Patents.
US2920865A
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US
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Bladed stator or rotor constructions with means to supply a fluid internally of the blades
Assignee: Rolls Royce PLC
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Filing: 1953-10-26
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Granted: 1960-01-12
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Expires: 1973-10-26
Abstract
No abstract record available.
Inventors
- 👤 Lombard Adrian Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:21
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; B; B64; B64C; B64C1/00; B64C1/40; E; E04; E04B; E04B1/00; E04B1/62; E04B1/64; E04B1/644; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243; F01D5/02; F01D5/08; F01D5/081; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1966104A
Cited
US2339779A
Cited
GB584580A
Cited
US2779565A
Cited
US2667326A
Cited
US2648520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |