US3393436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of securing a blade assembly in a casing, e. g., a gas turbine engine rotor casing
Assignee: Rolls Royce PLC
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Filing: 1966-09-06
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Granted: 1968-07-23
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Expires: 1986-09-06
Abstract
No abstract record available.
Inventors
- 👤 Blackhurst Robert Vaughan
- 👤 Longley Peter John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/54; F04D29/541; F04D29/542; F01; F01D; F01D9/00; F01D9/02; F01D9/04; F01D9/042; F01D9/044; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49323; Y10T29/49826; Y10T29/49863; Y10T29/49874
Claims Analysis
Total Claims: 0
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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) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |