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Expired European patentEurope

Magnesium-calcium alloys for debismuthizing lead

EP 0343012 B1 · Applicant: TIMMINCO LIMITED

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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 May 19, 1989 and granted September 13, 1995. A European patent lasts at most 20 years from filing, so its term ended May 19, 2009.
  • 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 November 19, 2014.
  • 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.
FiledMay 19, 1989
PublishedNovember 23, 1989
GrantedSeptember 13, 1995
Term endedMay 19, 2009
Application numberEP 89305122
Classification (CPC)C22B13/06

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedMay 19, 1989PublishedNov 23, 1989Patent grantedSep 13, 1995Term endedMay 19, 2009

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