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Expired Canadian patentCanada

Hair conditioning composition and method

CA 1260399 A · Owner: Curtis (Helene) Industries, Inc. · Inventors: Patel, Chaitanya

CIPO record

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Abstract From the Canadian patent

A human hair conditioner and methods are disclosed. The conditioner consists essentially of an aqueous composition containing 0.25-4 percent static-reducing agent, 0.05-1.0 percent cationic film-forming polymer that contains a plurality of quaternary nitrogen atoms, and 0.25-4 percent distearyldimethyammonium salt, wherein the weight ratio of the static-reducing agent to the cationic polymer is about 2:1 to about 20:1.

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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 September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 1, 1985
GrantedSeptember 26, 1989
Term endedSeptember 26, 2006
Patent numberCA 1260399 A
Classification (IPC)A61K8/37 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedNov 1, 1985Patent grantedSep 26, 1989Term endedSep 26, 2006

Sources & verification

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