Patent US3008689A successfully refreshed from Google Patents.
US3008689A
Expired / Lapsed
US
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Axial-flow compressors and turbines
Assignee: Rolls Royce PLC
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Filing: 1955-07-22
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Granted: 1961-11-14
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Expires: 1975-07-22
Abstract
No abstract record available.
Inventors
- 👤 Morley Frederick Willia Walton
- 👤 Cook Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:47
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/005; F01D11/006; F01D11/008; F01D5/00; F01D5/30; F01D5/32; F01D5/323; F01D5/326; F22; F22B; F22B37/00; F22B37/02; F22B37/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1585713A
Cited
FR969413A
Cited
FR59398E
Cited
FR989556A
Cited
GB687507A
Cited
GB671960A
Cited
FR998221A
Cited
US2751189A
Cited
US2755063A
Cited
US2669383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |