Patent Yard Sign in
Expired European patentEurope

Process for the isomerisation of n-paraffins to isoparaffins

EP 0666249 B1 · Applicant: TOTAL RAFFINAGE DISTRIBUTION S.A.

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 January 30, 1995 and granted March 5, 1997. A European patent lasts at most 20 years from filing, so its term ended January 30, 2015.
  • 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 30, 2020.
  • 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 30, 1995
PublishedAugust 9, 1995
GrantedMarch 5, 1997
Term endedJanuary 30, 2015
Application numberEP 95400195
Classification (CPC)C07C5/2791

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedJan 30, 1995PublishedAug 9, 1995Patent grantedMarch 5, 1997Term endedJan 30, 2015

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.