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Expired European patentEurope

Metal amine complexes for improving the bond strength properties of asphalt

EP 0125852 B1 · Applicant: MORTON THIOKOL, 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 May 4, 1984 and granted July 20, 1988. A European patent lasts at most 20 years from filing, so its term ended May 4, 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 November 4, 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.
FiledMay 4, 1984
PublishedNovember 21, 1984
GrantedJuly 20, 1988
Term endedMay 4, 2004
Application numberEP 84303039
Classification (CPC)C07F7/003 +2 more

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedMay 4, 1984PublishedNov 21, 1984Patent grantedJuly 20, 1988Term endedMay 4, 2004

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