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Expired European patentEurope

Purine derivatives having pharmacological action

EP 0346460 B1 · Applicant: CO PHARMA CORPORATION

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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 December 22, 1988 and granted March 10, 1993. A European patent lasts at most 20 years from filing, so its term ended December 22, 2008.
  • 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 22, 2014.
  • 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 22, 1988
PublishedDecember 20, 1989
GrantedMarch 10, 1993
Term endedDecember 22, 2008
Application numberEP 89902205
Classification (CPC)C07K5/06086 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedDec 22, 1988PublishedDec 20, 1989Patent grantedMarch 10, 1993Term endedDec 22, 2008

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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