US2980395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor with pivoted blades for compressors and turbines
Assignee: Rolls Royce PLC
•
Filing: 1954-03-29
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Granted: 1961-04-18
•
Expires: 1974-03-29
Abstract
No abstract record available.
Inventors
- 👤 Rubbra Arthur Alexander
- 👤 Jones Ronald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:13
CPC Classifications
A; A61; A61K; A61K31/00; C; C07; C07D; C07D263/00; C07D263/02; C07D263/08; C07D263/10; C07D263/14; F; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F01D5/30; F01D5/3053; F02; F02K; F02K1/00; F02K1/06; F02K1/12; F02K1/1207; F02K1/1223
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US612815A
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GB302953A
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US2326145A
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US2404076A
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US2406940A
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US2435427A
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GB621315A
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US2635848A
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US2625366A
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GB679714A
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US2711631A
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FR989556A
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US2819869A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-17 | 1964-10-17 | 1965-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-17 | 1968-10-17 | 1969-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-17 | 1972-10-17 | 1973-04-18 | $7700.00 | Window Closed / Lapsed |