US3394543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine engine with means to accumulate compressed air for auxiliary use
Assignee: Rolls Royce PLC
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Filing: 1967-03-30
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Granted: 1968-07-30
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Expires: 1987-03-30
Abstract
No abstract record available.
Inventors
- 👤 Slattery Sidney Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/60; F01; F01D; F01D9/00; F01D9/06; F01D9/065; F04; F04D; F04D29/00; F04D29/40; F04D29/52; F04D29/522; F04D29/54; F04D29/541; F04D29/542; F23R3/02; F23R3/04; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |