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Expired European patentEurope

Heat-resistant martensite alloy excellent in high-temperature creep rapture strength and ductility and process for producing the same

EP 1275744 B1 · Applicant: Hitachi, Ltd.

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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 31, 2002 and granted December 31, 2008. A European patent lasts at most 20 years from filing, so its term ended January 31, 2022.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 31, 2002
PublishedJanuary 15, 2003
GrantedDecember 31, 2008
Term endedJanuary 31, 2022
Application numberEP 02711262
Classification (CPC)C22C38/02 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedJan 31, 2002PublishedJan 15, 2003Patent grantedDec 31, 2008Term endedJan 31, 2022

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

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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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