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Expired European patentEurope

Method for immobilizing ligands or compounds having ligands bonded thereto

EP 0818237 B1 · Applicant: KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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.

Why it's free to use

  • Filed February 26, 1996 and granted January 5, 2005. A European patent lasts at most 20 years from filing, so its term ended February 26, 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 August 26, 2021.
  • 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.
FiledFebruary 26, 1996
PublishedJanuary 14, 1998
GrantedJanuary 5, 2005
Term endedFebruary 26, 2016
Application numberEP 96903252
Classification (CPC)B01J20/3204 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedFeb 26, 1996PublishedJan 14, 1998Patent grantedJan 5, 2005Term endedFeb 26, 2016

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