Expired European patentEurope
Pyrido(3,4-c)psoralenes, preparation, use in cosmetology and in medicine and compositions containing them
EP 0088024 B1 · Applicant: INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE (INSERM)
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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.
Why it's free to use
- Filed February 25, 1983 and granted September 17, 1986. A European patent lasts at most 20 years from filing, so its term ended February 25, 2003.
- 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 August 25, 2008.
- 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.
FiledFebruary 25, 1983
PublishedSeptember 7, 1983
GrantedSeptember 17, 1986
Term endedFebruary 25, 2003
Application numberEP 83400401
Classification (CPC)A61P29/00 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.