Patent US3375971A successfully refreshed from Google Patents.
US3375971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment means for turbofan low compressor assembly
Assignee: RTX Corp
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Filing: 1966-09-01
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Granted: 1968-04-02
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Expires: 1986-09-01
Abstract
No abstract record available.
Inventors
- 👤 David L Fitton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:39
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
IN A TURBOFAN ENGINE, A COMPRESSOR STATOR VANE SUPPORT ASSEMBLY, COMPRISING: A FAN CASING, A SPLINED FLOW SPLITTER, CONCENTRIC WITH SAID FAN CASING, A RING CONNECTED TO THE AFT END OF SAID FLOW SPLITTER, SAID RING HAVING A PLURALITY OF INWARDLY PROJECTING TANGS, SAID TANGS BEING AXIALLY ALIGNED WITH SAID SPLINES, AN INNER SUPPORT RING CONCENTRIC WITH SAID FAN CASING AND SAID FLOW SPLITTER,
Claim 2
Dependent Claim
64 words
IN A TURBOFAN ENGINE, A COMPRESSOR STATOR VANE SUPPORT ASSEMBLY, COMPRISING: A FAN CASING, A SPLINED FLOW SPLITTER, CONCENTRIC WITH SAID FAN CASING, A RING CONNECTED TO THE AFT END OF SAID FLOW SPLITTER, SAID RING HAVING A PLURALITY OF INWARDLY PROJECTING TANGS, SAID TANGS BEING AXIALLY ALIGNED WITH SAID SPLINES, AN INNER SUPPORT RING CONCENTRIC WITH SAID FAN CASING AND SAID FLOW SPLITTER,
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |