US2838274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bladed stator structures for axialflow fluid machines
Assignee: Rolls Royce PLC
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Filing: 1953-05-11
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Granted: 1958-06-10
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Expires: 1973-05-11
Abstract
No abstract record available.
Inventors
- 👤 Fletcher Arthur Holmes
- 👤 Stark Frank Henry
- 👤 Ellison George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:22
CPC Classifications
F; F01; F01D; F01D17/00; F01D17/10; F01D17/12; F01D17/14; F01D17/16; F01D17/162; F16; F16H; F16H21/00; F16H21/10; F16H21/16; F16H21/18; F16H21/36; F16H21/365
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR872065A
Cited
GB540707A
Cited
US2382913A
Cited
US2412365A
Cited
US2648195A
Cited
US2613029A
Cited
US2660413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |