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Expired European patentEurope

Use of difunctional acrylic and methacrylic esters for the preparation of bone cements

EP 0123323 B1 · Applicant: ESPE Stiftung & Co Produktions- und Vertriebs KG

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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 April 26, 1984 and granted August 23, 1989. A European patent lasts at most 20 years from filing, so its term ended April 26, 2004.
  • 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 October 26, 2009.
  • 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.
FiledApril 26, 1984
PublishedOctober 31, 1984
GrantedAugust 23, 1989
Term endedApril 26, 2004
Application numberEP 84104710
Classification (CPC)A61L24/06

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedApril 26, 1984PublishedOct 31, 1984Patent grantedAug 23, 1989Term endedApril 26, 2004

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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