US3434288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
By-pass gas turbine engine
Assignee: Rolls Royce PLC
•
Filing: 1967-02-27
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Granted: 1969-03-25
•
Expires: 1987-02-27
Abstract
No abstract record available.
Inventors
- 👤 James Alexander Petrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:48
CPC Classifications
F; F02; F02K; F02K3/00; F02K3/02; F02K3/04; F02K3/06; F01; F01D; F01D25/00; F01D25/16; F02C; F02C7/00; F02C7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2575682A
Cited
US2803943A
Cited
GB980368A
Cited
US3273340A
Cited
US3279182A
Cited
US3280561A
Cited
US3313105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |