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Expired European patentEurope

Silicone emulsions

EP 0385342 B1 · Applicant: DOW CORNING CORPORATION

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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 February 26, 1990 and granted June 15, 1994. A European patent lasts at most 20 years from filing, so its term ended February 26, 2010.
  • 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 August 26, 2015.
  • 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.
FiledFebruary 26, 1990
PublishedSeptember 5, 1990
GrantedJune 15, 1994
Term endedFebruary 26, 2010
Application numberEP 90103692
Classification (CPC)C09D183/04 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedFeb 26, 1990PublishedSep 5, 1990Patent grantedJune 15, 1994Term endedFeb 26, 2010

Sources & verification