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Expired European patentEurope

Apparatus for ignition diagnosis in a combustion turbine

EP 0501152 B1 · Applicant: WESTINGHOUSE ELECTRIC CORPORATION

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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.

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Why it's free to use

  • Filed January 28, 1992 and granted November 27, 1996. A European patent lasts at most 20 years from filing, so its term ended January 28, 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 28, 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 28, 1992
PublishedSeptember 2, 1992
GrantedNovember 27, 1996
Term endedJanuary 28, 2012
Application numberEP 92101360
Classification (CPC)F02C7/266

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedJan 28, 1992PublishedSep 2, 1992Patent grantedNov 27, 1996Term endedJan 28, 2012

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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