Patent Yard Sign in
Expired Canadian patentCanada

Method for producing starting materials for obtaining conjugated linoleic acid

CA 2422804 C · Owner: Strube, Albert · Inventors: Hommerich, Uwe; Strube, Albert; Gutsche, Bernhard

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The invention relates to a method for producing starting materials for obtaining conjugated linoleic acid, which is characterized in that: (a) triglycerides, which contain at least 60 wt. % linoleic acid are , interesterified with alcohols having a chain length of C1 to C4 carbon atoms at a temperature ranging from 80 to 120 ~C and; (b) the interesterification , mixture obtained in such a manner is subjected to a distillation.

Read the whole patent

Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed September 8, 2001 and granted August 2, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 8, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 8, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 8, 2001
GrantedAugust 2, 2011
Term endedSeptember 8, 2021
Patent numberCA 2422804 C
Classification (IPC)C11C3/10 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedSep 8, 2001Patent grantedAug 2, 2011Term endedSep 8, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.