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Expired European patentEurope

Pyrometallurgical method and device for separating zinc and/or cadmium from lead in metallurgical residues

EP 1019554 B1 · Applicant: VOEST-ALPINE STAHL Donawitz GmbH

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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 September 17, 1998 and granted April 24, 2002. A European patent lasts at most 20 years from filing, so its term ended September 17, 2018.
  • 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 March 17, 2024.
  • 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.
FiledSeptember 17, 1998
PublishedJuly 19, 2000
GrantedApril 24, 2002
Term endedSeptember 17, 2018
Application numberEP 98944889
Classification (CPC)C22B19/30 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedSep 17, 1998PublishedJuly 19, 2000Patent grantedApril 24, 2002Term endedSep 17, 2018

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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