Patent Yard Sign in
Expired European patentEurope

Treatment of arteriosclerosis by administration of l-tryptophan or l-5-hydroxytryptophan

EP 0342211 B1 · Applicant: FREGLY, Melvin J.

EPO PDF

Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed September 28, 1988 and granted March 30, 1994. A European patent lasts at most 20 years from filing, so its term ended September 28, 2008.
  • 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 March 28, 2014.
  • 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.
FiledSeptember 28, 1988
PublishedNovember 23, 1989
GrantedMarch 30, 1994
Term endedSeptember 28, 2008
Application numberEP 88909260
Classification (CPC)A61K31/405

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedSep 28, 1988PublishedNov 23, 1989Patent grantedMarch 30, 1994Term endedSep 28, 2008

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.