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Expired European patentEurope

A combustion chamber assembly

EP 0580583 B1 · Applicant: ROLLS-ROYCE plc

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed January 6, 1992 and granted August 30, 1995. A European patent lasts at most 20 years from filing, so its term ended January 6, 2012.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by July 6, 2017.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledJanuary 6, 1992
PublishedFebruary 2, 1994
GrantedAugust 30, 1995
Term endedJanuary 6, 2012
Application numberEP 92902366
Classification (CPC)F02C7/20 +1 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedJan 6, 1992PublishedFeb 2, 1994Patent grantedAug 30, 1995Term endedJan 6, 2012

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