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Expired European patentEurope

Diazepane derivatives or salts thereof

EP 1273575 B1 · Applicant: YAMANOUCHI PHARMACEUTICAL CO. LTD.

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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 March 29, 2001 and granted May 19, 2004. A European patent lasts at most 20 years from filing, so its term ended March 29, 2021.
  • 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 September 29, 2026.
  • 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.
FiledMarch 29, 2001
PublishedJanuary 8, 2003
GrantedMay 19, 2004
Term endedMarch 29, 2021
Application numberEP 01917634
Classification (CPC)C07D403/12 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedMarch 29, 2001PublishedJan 8, 2003Patent grantedMay 19, 2004Term endedMarch 29, 2021

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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