US3031128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-turbine engine with controllable air tapping means
Assignee: Rolls Royce PLC
•
Filing: 1957-11-18
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Granted: 1962-04-24
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Expires: 1977-11-18
Abstract
No abstract record available.
Inventors
- 👤 Rubbra Arthur Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:14
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0207; F04D27/0215; F02; F02C; F02C3/00; F02C3/04; F02C3/06; F02C7/00; F02C7/12; F02C7/16; F02C7/18; F04D29/00; F04D29/05; F04D29/053; F04D29/26; F04D29/32; F04D29/321; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR24453E
Cited
US2485514A
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US2656096A
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US2588140A
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US2636665A
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US2599470A
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US2618453A
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US2660421A
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US2592938A
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US2749087A
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GB736503A
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US2830751A
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FR2852917A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |