US3393894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blade assembly
Assignee: Rolls Royce PLC
•
Filing: 1966-12-05
•
Granted: 1968-07-23
•
Expires: 1986-12-05
Abstract
No abstract record available.
Inventors
- 👤 Redsell Arthur Rickards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:54
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/22; F01D5/225; F01D11/00; F01D11/005; F01D11/006; F01D9/00; F01D9/02; F01D9/04; F01D9/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1423466A
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US2220918A
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US2310412A
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US2638743A
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US2651496A
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US2857132A
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US2859934A
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US3004750A
Cited
US3295825A
Cited
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 |