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European application, no grantEurope

Method of preparing even synthetic coatings on working models for the dentistry technique

EP 0013354 A1 · Applicant: Etablissement Dentaire IVOCLAR

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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 7, 1979 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 7, 1999.
  • 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 7, 2005.
  • 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 7, 1979
PublishedJuly 23, 1980
GrantedNever granted
Term endedDecember 7, 1999
Application numberEP 79104988
Classification (CPC)A61K6/887

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedDec 7, 1979PublishedJuly 23, 1980Term endedDec 7, 1999

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