US3363419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine ducted fan engine
Assignee: Rolls Royce PLC
•
Filing: 1966-04-04
•
Granted: 1968-01-16
•
Expires: 1986-04-04
Abstract
No abstract record available.
Inventors
- 👤 Wilde Geoffrey Light
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:26
CPC Classifications
F; F04; F04D; F04D19/00; F04D19/02; F04D19/028; F02; F02K; F02K3/00; F02K3/02; F02K3/04; F02K3/062; F02K3/072; Y; Y02; Y02T; Y02T50/00; Y02T50/60; Y10; Y10S; Y10S415/00; Y10S415/914
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2191341A
Cited
GB587571A
Cited
US2478206A
Cited
US3009630A
Cited
US2929755A
Cited
US3302924A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |