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Expired European patentEurope

Arrangement for direct induction melting in a cooled vessel with supplementary electromagnetic confinement of the contents

EP 0056915 B1 · Applicant: SOCIETE D'APPLICATIONS DE LA PHYSIQUE MODERNE ET DE L'ELECTRONIQUE SAPHYMO-STEL

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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 November 20, 1981 and granted July 25, 1984. A European patent lasts at most 20 years from filing, so its term ended November 20, 2001.
  • 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 May 20, 2007.
  • 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.
FiledNovember 20, 1981
PublishedAugust 4, 1982
GrantedJuly 25, 1984
Term endedNovember 20, 2001
Application numberEP 81401845
Classification (CPC)H05B6/22 +1 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedNov 20, 1981PublishedAug 4, 1982Patent grantedJuly 25, 1984Term endedNov 20, 2001

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