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Expired Canadian patentCanada

Liquid soap personal cleanser with critical heat cycle stabilizing system

CA 2105088 C · Owner: The Procter & Gamble Company · Inventors: Baier, Kathleen G.; Macgilp, Neil A.; Girardot, Richard M.

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 present invention relates to a stable dispersoidal liquid soap cleansing composition comprising: (A) from about 5 % to about 20 % by weight of potassium fatty acid soap; (B) from about 2.5 % to about 18 % C8-C22 free fatty acid; (C) from about 55 % to about 90 % water; and (D) from about 0.1 % to about 4 % of a stabilizer selected from the group consisting of: from about 0.1 % to about 3.0 % of an electrolyte; and from 0 % to about 2.0 % of a polymeric thickener; and mixtures thereof; and wherein said fatty acid of said (A) and (B) has an Iodine Value of from zero to about 15; and a titer of from about 44 to about 70; wherein said soap and said free fatty acid have a weight ratio of …

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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 January 30, 1992 and granted December 9, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1992
GrantedDecember 9, 1997
Term endedJanuary 30, 2012
Patent numberCA 2105088 C
Classification (IPC)C11D17/08 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJan 30, 1992Patent grantedDec 9, 1997Term endedJan 30, 2012

Sources & verification

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