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Expired European patentEurope

Device for retaining ferromagnetic articles contained in a liquid circulating in a pipe network

EP 0819310 B1 · Applicant: ELECTRICITE DE FRANCE Service National

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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 23, 1996 and granted December 29, 1999. A European patent lasts at most 20 years from filing, so its term ended February 23, 2016.
  • 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 23, 2021.
  • 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 23, 1996
PublishedJanuary 21, 1998
GrantedDecember 29, 1999
Term endedFebruary 23, 2016
Application numberEP 96904901
Classification (CPC)B03C1/286 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedFeb 23, 1996PublishedJan 21, 1998Patent grantedDec 29, 1999Term endedFeb 23, 2016

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