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Expired European patentEurope

Therapeutic ribozyme compositions

EP 0546092 B1 · Applicant: YALE UNIVERSITY

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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 August 15, 1991 and granted May 28, 1997. A European patent lasts at most 20 years from filing, so its term ended August 15, 2011.
  • 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 February 15, 2017.
  • 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.
FiledAugust 15, 1991
PublishedJune 16, 1993
GrantedMay 28, 1997
Term endedAugust 15, 2011
Application numberEP 91917398
Classification (CPC)A61P35/00 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedAug 15, 1991PublishedJune 16, 1993Patent grantedMay 28, 1997Term endedAug 15, 2011

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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