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Expired European patentEurope

Process for the organic synthesis of oligonucleotides containing galactosamin-uron-acid motives, oligosaccharides obtained and their biological applications

EP 0113599 B1 · Applicant: CHOAY S.A.

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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.

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Why it's free to use

  • Filed October 27, 1983 and granted February 1, 1989. A European patent lasts at most 20 years from filing, so its term ended October 27, 2003.
  • 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 April 27, 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.
FiledOctober 27, 1983
PublishedJuly 18, 1984
GrantedFebruary 1, 1989
Term endedOctober 27, 2003
Application numberEP 83402109
Classification (CPC)A61P43/00 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedOct 27, 1983PublishedJuly 18, 1984Patent grantedFeb 1, 1989Term endedOct 27, 2003

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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