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Expired Canadian patentCanada

Esterified alkoxylated alkyl glycosides useful in low calorie fat-containing food compositions

CA 2022014 C · Owner: Rudolf, Stephen Edward · Inventors: Kopf, Peter William; Ennis, John Logan; Van Buren, Martin Francis

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention is a low calorie fat-containing food composition. From 10% to 100% of the fat ingredients consist of alkoxylated alkyl glycosides esterified with fatty acids. Between 1 and about 50 alkoxyl groups are attached by ether linkages to each alkyl glycoside molecule and not more than, about 12 alkoxyl groups are attached to each attachment site of an alkyl glycoside molecule. Each alkoxylated alkyl glycoside molecule is esterified with between 4 and 7 fatty acid groups, the fatty acids containing between about 2 and about 24 carbon atoms. Preferred alkoxylated alkyl glycosides are propoxylated and ethoxylated methyl glucosides.

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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 July 26, 1990 and granted July 22, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 26, 1990
GrantedJuly 22, 1997
Term endedJuly 26, 2010
Patent numberCA 2022014 C
Classification (IPC)A23L1/30 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJuly 26, 1990Patent grantedJuly 22, 1997Term endedJuly 26, 2010

Sources & verification

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