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Expired European patentEurope

Compositions and single-crystal articles of hafnium-modified and/or zirconium-modified nickel-base superalloys

EP 1057899 B1 · Applicant: GENERAL ELECTRIC COMPANY

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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 May 17, 2000 and granted July 11, 2012. A European patent lasts at most 20 years from filing, so its term ended May 17, 2020.
  • 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 November 17, 2025.
  • 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.
FiledMay 17, 2000
PublishedDecember 6, 2000
GrantedJuly 11, 2012
Term endedMay 17, 2020
Application numberEP 00304153
Classification (CPC)C22C19/057

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMay 17, 2000PublishedDec 6, 2000Patent grantedJuly 11, 2012Term endedMay 17, 2020

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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