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Expired European patentEurope

Internally blocked polyamine crosslinkers and coating compositions containing the same

EP 0868443 B1 · Applicant: Akzo Nobel N.V.

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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.

Why it's free to use

  • Filed October 9, 1996 and granted August 2, 2000. A European patent lasts at most 20 years from filing, so its term ended October 9, 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 April 9, 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.
FiledOctober 9, 1996
PublishedOctober 7, 1998
GrantedAugust 2, 2000
Term endedOctober 9, 2016
Application numberEP 96934593
Classification (CPC)C08F8/30

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedOct 9, 1996PublishedOct 7, 1998Patent grantedAug 2, 2000Term endedOct 9, 2016

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