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Expired European patentEurope

Drug for treatment and prophylaxis of kidney and liver diseases

EP 0270690 B1 · Applicant: DAINIPPON INK AND CHEMICALS, INC.

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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 June 22, 1987 and granted May 15, 1991. A European patent lasts at most 20 years from filing, so its term ended June 22, 2007.
  • 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 December 22, 2012.
  • 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.
FiledJune 22, 1987
PublishedJune 15, 1988
GrantedMay 15, 1991
Term endedJune 22, 2007
Application numberEP 87904105
Classification (CPC)A61K31/12

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJune 22, 1987PublishedJune 15, 1988Patent grantedMay 15, 1991Term endedJune 22, 2007

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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