US2931623A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine rotor assembly
Assignee: Orenda Engines Ltd
•
Filing: 1957-05-02
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Granted: 1960-04-05
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Expires: 1977-05-02
Abstract
No abstract record available.
Inventors
- 👤 Hyde John Alan Courtney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:07
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/14; F01D5/18; F01D5/187; F01D5/02; F01D5/08; F01D5/081; F05; F05B; F05B2240/00; F05B2240/80; F05B2240/801; F05D; F05D2240/00; F05D2240/80; F05D2240/81; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1651503A
Cited
US2779565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |