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Expired European patentEurope

Method for producing enhanced bonds between surfaces and articles produced by the method

EP 0229159 B1 · Applicant: THE DOW CHEMICAL COMPANY

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 June 18, 1986 and granted April 17, 1991. A European patent lasts at most 20 years from filing, so its term ended June 18, 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 December 18, 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.
FiledJune 18, 1986
PublishedJuly 22, 1987
GrantedApril 17, 1991
Term endedJune 18, 2006
Application numberEP 86904544
Classification (CPC)C09J5/02 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedJune 18, 1986PublishedJuly 22, 1987Patent grantedApril 17, 1991Term endedJune 18, 2006

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