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Expired European patentEurope

Silicone primer

EP 0500115 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

Read the whole patent

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 20, 1992 and granted December 7, 1994. A European patent lasts at most 20 years from filing, so its term ended February 20, 2012.
  • 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 20, 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.
FiledFebruary 20, 1992
PublishedAugust 26, 1992
GrantedDecember 7, 1994
Term endedFebruary 20, 2012
Application numberEP 92102882
Classification (CPC)C08J7/0427 +2 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedFeb 20, 1992PublishedAug 26, 1992Patent grantedDec 7, 1994Term endedFeb 20, 2012

Sources & verification