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Expired European patentEurope

Femoral head prosthesis for cementless affixation

EP 0447734 B1 · Applicant: SULZER Medizinaltechnik AG

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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 December 6, 1990 and granted October 6, 1993. A European patent lasts at most 20 years from filing, so its term ended December 6, 2010.
  • 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 June 6, 2016.
  • 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.
FiledDecember 6, 1990
PublishedSeptember 25, 1991
GrantedOctober 6, 1993
Term endedDecember 6, 2010
Application numberEP 90810956
Classification (CPC)A61F2/30734

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedDec 6, 1990PublishedSep 25, 1991Patent grantedOct 6, 1993Term endedDec 6, 2010

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