US2853854A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shroud assembly for gas turbine engines
Assignee: Orenda Engines Ltd
•
Filing: 1957-02-04
•
Granted: 1958-09-30
•
Expires: 1977-02-04
Abstract
No abstract record available.
Inventors
- 👤 Avery Burton Albert
- 👤 Keast Francis Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:01
CPC Classifications
F; F02; F02C; F02C7/00; F02C7/04; F02C7/042; F02K; F02K1/00; F02K1/78; F02K1/82; F02K1/822; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2612748A
Cited
US2663517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |