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Expired European patentEurope

Process for chemically binding a composition based on aliphatic polyamides with a composition based on carboxylic rubbers, and products prepared thereby

EP 0344427 B1 · Applicant: HÜLS AKTIENGESELLSCHAFT

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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 April 1, 1989 and granted June 21, 1995. A European patent lasts at most 20 years from filing, so its term ended April 1, 2009.
  • 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 1, 2014.
  • 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 1, 1989
PublishedDecember 6, 1989
GrantedJune 21, 1995
Term endedApril 1, 2009
Application numberEP 89105748
Classification (CPC)C08L13/00 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedApril 1, 1989PublishedDec 6, 1989Patent grantedJune 21, 1995Term endedApril 1, 2009

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