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Expired European patentEurope

Pearly lustre concentrate with newtonian viscosity

EP 0817609 B1 · Applicant: Cognis Deutschland GmbH & 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 March 20, 1996 and granted June 26, 2002. A European patent lasts at most 20 years from filing, so its term ended March 20, 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 September 20, 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.
FiledMarch 20, 1996
PublishedJanuary 14, 1998
GrantedJune 26, 2002
Term endedMarch 20, 2016
Application numberEP 96908085
Classification (CPC)C11D1/86 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedMarch 20, 1996PublishedJan 14, 1998Patent grantedJune 26, 2002Term endedMarch 20, 2016

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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