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Expired European patentEurope

In vivo stain compounds and methods of use to identify dysplastic tissue

EP 1165087 B1 · Applicant: Zila, 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 January 31, 2000 and granted September 7, 2005. A European patent lasts at most 20 years from filing, so its term ended January 31, 2020.
  • 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 July 31, 2025.
  • 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.
FiledJanuary 31, 2000
PublishedJanuary 2, 2002
GrantedSeptember 7, 2005
Term endedJanuary 31, 2020
Application numberEP 00915730
Classification (CPC)C07D279/36 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedJan 31, 2000PublishedJan 2, 2002Patent grantedSep 7, 2005Term endedJan 31, 2020

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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