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Expired European patentEurope

Nickel base single crystal superalloy with improved oxydation resistance and process for producing it

EP 0555124 B1 · Applicant: OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES

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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 26, 1993 and granted May 13, 1998. A European patent lasts at most 20 years from filing, so its term ended January 26, 2013.
  • 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 26, 2018.
  • 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 26, 1993
PublishedAugust 11, 1993
GrantedMay 13, 1998
Term endedJanuary 26, 2013
Application numberEP 93400191
Classification (CPC)C30B11/00 +1 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedJan 26, 1993PublishedAug 11, 1993Patent grantedMay 13, 1998Term endedJan 26, 2013

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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