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Expired European patentEurope

Moisture curable polyurethane composition comprising polyaldimine

EP 0469751 B1 · Applicant: MITSUI TOATSU CHEMICALS, Inc.

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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 July 18, 1991 and granted May 17, 1995. A European patent lasts at most 20 years from filing, so its term ended July 18, 2011.
  • 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 January 18, 2017.
  • 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.
FiledJuly 18, 1991
PublishedFebruary 5, 1992
GrantedMay 17, 1995
Term endedJuly 18, 2011
Application numberEP 91306521
Classification (CPC)C08G18/10 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJuly 18, 1991PublishedFeb 5, 1992Patent grantedMay 17, 1995Term endedJuly 18, 2011

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