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Expired European patentEurope

Heat-resistant, austenitic cast steel and exhaust equipment member made thereof

EP 0668367 B1 · Applicant: HITACHI METALS, 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 November 29, 1994 and granted June 19, 2002. A European patent lasts at most 20 years from filing, so its term ended November 29, 2014.
  • 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 May 29, 2020.
  • 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.
FiledNovember 29, 1994
PublishedAugust 23, 1995
GrantedJune 19, 2002
Term endedNovember 29, 2014
Application numberEP 94118788
Classification (CPC)C22C38/48

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedNov 29, 1994PublishedAug 23, 1995Patent grantedJune 19, 2002Term endedNov 29, 2014

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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