US2614799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistage turbine disk construction for gas turbine engines
Assignee: Rolls Royce PLC
•
Filing: 1947-10-13
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Granted: 1952-10-21
•
Expires: 1967-10-13
Abstract
No abstract record available.
Inventors
- 👤 Judson Charles Alan
- 👤 Read John Radcliffe
- 👤 Hunter Philip Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:15
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/06; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |