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Expired European patentEurope

Hydrocarbon resin and polyphenylène ether-based comb polymers and their admixture with polyphenylene ethers, and process for their preparation

EP 0195199 B1 · Applicant: HÜLS AKTIENGESELLSCHAFT

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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 January 25, 1986 and granted May 31, 1989. A European patent lasts at most 20 years from filing, so its term ended January 25, 2006.
  • 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 July 25, 2011.
  • 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.
FiledJanuary 25, 1986
PublishedSeptember 24, 1986
GrantedMay 31, 1989
Term endedJanuary 25, 2006
Application numberEP 86101005
Classification (CPC)C08G65/44

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJan 25, 1986PublishedSep 24, 1986Patent grantedMay 31, 1989Term endedJan 25, 2006

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