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Expired European patentEurope

Use of liquid neutral one-component coagulants for the coagulation of varnishes and coating materials

EP 0124850 B1 · Applicant: Henkel Kommanditgesellschaft auf Aktien

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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.

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Why it's free to use

  • Filed April 30, 1984 and granted March 18, 1987. A European patent lasts at most 20 years from filing, so its term ended April 30, 2004.
  • 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 October 30, 2009.
  • 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.
FiledApril 30, 1984
PublishedNovember 14, 1984
GrantedMarch 18, 1987
Term endedApril 30, 2004
Application numberEP 84104859
Classification (CPC)C09D7/71

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedApril 30, 1984PublishedNov 14, 1984Patent grantedMarch 18, 1987Term endedApril 30, 2004

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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