US3588267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade assembly for a fluid flow machine
Assignee: Rolls Royce PLC
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Filing: 1969-06-17
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Granted: 1971-06-28
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Expires: 1989-06-17
Abstract
Abstract A FLUID FLOW MACHINE HAS AN APERTURED METALLIC CASING AND A HUB BETWEEN WHICH EXTEND AEROFOIL BLADES OF SYNTHETIC RESIN MATERIAL, THE ROOTS OF THE BLADES BEING MOUNTED IN THE APERTURES OF THE CASING AND BEING RETAINED THEREIN BY MEANS OF A MEMBER MADE OF AN ELASTOMERIC MATERIAL WHICH ALLOWS FOR DIFFERENTIAL THERMAL EXPANSION.
Inventors
- 👤 Wilfred Henry Wilkinson
- 👤 Paul William Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:48
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F01D9/044; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |