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Expired European patentEurope

Oxygen storage material based on cerium oxide, method for the preparation thereof and use for the purification of exhaust gases of internal combustion engines

EP 1180397 B1 · Applicant: Umicore AG & Co. KG

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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 19, 2000 and granted March 28, 2007. A European patent lasts at most 20 years from filing, so its term ended August 19, 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 February 19, 2026.
  • 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 19, 2000
PublishedFebruary 20, 2002
GrantedMarch 28, 2007
Term endedAugust 19, 2020
Application numberEP 00117898
Classification (CPC)C01B13/02 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedAug 19, 2000PublishedFeb 20, 2002Patent grantedMarch 28, 2007Term endedAug 19, 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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