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US2643514A Expired / Lapsed US ⏱️ 0.0 years remaining

Fuel system for gas-turbine engines with means to maintain the fuel supply within desired limits during transient operating conditions

Assignee: Rolls Royce PLC
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Filing: 1949-08-12
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Granted: 1953-06-30
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Expires: 1969-08-12
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Abstract

No abstract record available.

Inventors

  • 👤 Jubb Albert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 23:14
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/16

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

GB490978A Cited
US2193114A Cited
GB580149A Cited
US2503048A Cited
US2446339A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1956-06-29 1956-12-29 1957-06-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1960-06-29 1960-12-29 1961-06-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1964-06-29 1964-12-29 1965-06-30 $7700.00 Window Closed / Lapsed

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