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Expired European patentEurope

Method for the production of silicium metal, silumin and aluminium metal

EP 0763151 B1 · Applicant: Stubergh, Jan

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Overview

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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 2, 1995 and granted November 25, 1998. A European patent lasts at most 20 years from filing, so its term ended June 2, 2015.
  • 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 2, 2020.
  • 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 2, 1995
PublishedMarch 19, 1997
GrantedNovember 25, 1998
Term endedJune 2, 2015
Application numberEP 95922010
Classification (CPC)C25C3/06 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedJune 2, 1995PublishedMarch 19, 1997Patent grantedNov 25, 1998Term endedJune 2, 2015

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