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Expired European patentEurope

Arsenic removal catalyst and method for making same

EP 1499699 B1 · Applicant: Shell Internationale Research Maatschappij B.V.

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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 December 17, 2002 and granted January 22, 2020. A European patent lasts at most 20 years from filing, so its term ended December 17, 2022.
  • 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.
FiledDecember 17, 2002
PublishedJanuary 26, 2005
GrantedJanuary 22, 2020
Term endedDecember 17, 2022
Application numberEP 02790136
Classification (CPC)B01J37/0205 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedDec 17, 2002PublishedJan 26, 2005Patent grantedJan 22, 2020Term endedDec 17, 2022

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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