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Expired Canadian patentCanada

Cosmetic composition

CA 1332568 C · Owner: Pereira, Mavis Claire · Inventors: Pereira, Mavis Claire

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

An emulsion suitable for topical application to human skin or hair comprises, in addition to water from 0.01 to 20% by weight of a skin benefit ingredient preferably a, 2-hydroxyalkanoic acid having from-3 to 20 carbon atoms or a salt thereof; from 0.1 to 20% by weight of polyoxyethylene-21-stearyl ether, as a principle emulsifier and from 0.5 to 70% by weight of an emollient oil.

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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

  • Granted October 18, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 18, 2011.
  • 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 5, 1989
GrantedOctober 18, 1994
Term endedOctober 18, 2011
Patent numberCA 1332568 C
Classification (IPC)A61K8/06

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 5, 1989Patent grantedOct 18, 1994Term endedOct 18, 2011

Sources & verification

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