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European application, no grantEurope

Process for treating an aqueous pigment suspension with an aqueous binder agent

EP 0542159 A1 · Applicant: RÖHM GMBH

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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 November 6, 1992 and never granted as a European patent. Had it been granted, its 20-year term would have ended November 6, 2012.
  • 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 May 6, 2018.
  • 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.
FiledNovember 6, 1992
PublishedMay 19, 1993
GrantedNever granted
Term endedNovember 6, 2012
Application numberEP 92119071
Classification (CPC)D21H17/69 +1 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedNov 6, 1992PublishedMay 19, 1993Term endedNov 6, 2012

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