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Expired European patentEurope

PROCESS FOR PRODUCING TiO2 PIGMENTS FROM TiO2 CLINKER

EP 0869994 B1 · Applicant: Metallgesellschaft Aktiengesellschaft

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Overview

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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 20, 1996 and granted May 17, 2000. A European patent lasts at most 20 years from filing, so its term ended September 20, 2016.
  • 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 20, 2022.
  • 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 20, 1996
PublishedOctober 14, 1998
GrantedMay 17, 2000
Term endedSeptember 20, 2016
Application numberEP 96932577
Classification (CPC)C01G23/047 +1 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedSep 20, 1996PublishedOct 14, 1998Patent grantedMay 17, 2000Term endedSep 20, 2016

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.