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Expired European patentEurope

Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulphide or laterite ores

EP 1012352 B1 · Applicant: COMINCO ENGINEERING SERVICES 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 August 14, 1998 and granted February 26, 2003. A European patent lasts at most 20 years from filing, so its term ended August 14, 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 February 14, 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.
FiledAugust 14, 1998
PublishedJune 28, 2000
GrantedFebruary 26, 2003
Term endedAugust 14, 2018
Application numberEP 98940006
Classification (CPC)C22B3/26 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedAug 14, 1998PublishedJune 28, 2000Patent grantedFeb 26, 2003Term endedAug 14, 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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