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Expired European patentEurope

Dental restorative material

EP 0091990 B1 · Applicant: Blendax-Werke R. Schneider GmbH & Co.

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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.

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Why it's free to use

  • Filed December 2, 1982 and granted March 18, 1987. A European patent lasts at most 20 years from filing, so its term ended December 2, 2002.
  • 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 2, 2008.
  • 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 2, 1982
PublishedOctober 26, 1983
GrantedMarch 18, 1987
Term endedDecember 2, 2002
Application numberEP 82111183
Classification (CPC)A61K6/887

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedDec 2, 1982PublishedOct 26, 1983Patent grantedMarch 18, 1987Term endedDec 2, 2002

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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