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Expired European patentEurope

Bi-aryl heterocyclic compounds and their use in human or veterinary medicine and in cosmetics

EP 0816352 B1 · Applicant: CENTRE INTERNATIONAL DE RECHERCHES DERMATOLOGIQUES GALDERMA (C.I.R.D. GALDERMA)

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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 11, 1997 and granted February 21, 2001. A European patent lasts at most 20 years from filing, so its term ended June 11, 2017.
  • 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 11, 2022.
  • 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 11, 1997
PublishedJanuary 7, 1998
GrantedFebruary 21, 2001
Term endedJune 11, 2017
Application numberEP 97401319
Classification (CPC)C07D409/04 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJune 11, 1997PublishedJan 7, 1998Patent grantedFeb 21, 2001Term endedJune 11, 2017

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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