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Expired European patentEurope

low chlorine platinum and platinum alloy powders with increased specific surface area and process for the preparation thereof using a nitrate salt melt

EP 1283274 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 30, 2001 and granted October 31, 2007. A European patent lasts at most 20 years from filing, so its term ended August 30, 2021.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 30, 2001
PublishedFebruary 12, 2003
GrantedOctober 31, 2007
Term endedAugust 30, 2021
Application numberEP 01120859
Classification (CPC)H01M4/8605 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedAug 30, 2001PublishedFeb 12, 2003Patent grantedOct 31, 2007Term endedAug 30, 2021

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

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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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