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Expired Canadian patentCanada

Hair rinse composition

CA 1234356 A · Owner: Kao Corporation · Inventors: Suzuki, Toshio; Okumura, Takeo

CIPO record

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Abstract From the Canadian patent

A hair rinse composition having improved rinsing performance and a process specified to prepare the same. The composition according to the invention comprises (A) 0.05 to 0.5 wt% of cationic surface active agent, and (B) a higher alcohol or a glycerine mono fatty acid ester having a melting point not lower than 45°C. The ingredient (B) should be contained in an amount of 3 to 15 times by weight, relative to ingredient (A). The composition is prepared by diluting (A). highly concentrated emulsified product containing 0.4 to 34 wt% of ingredient (A) and (B) in total with 1 to 20 times by weight, relative to the emulsified product of water.

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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 March 22, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 22, 2005.
  • 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 4, 1984
GrantedMarch 22, 1988
Term endedMarch 22, 2005
Patent numberCA 1234356 A
Classification (IPC)A61K8/73 +2 more

Timeline

Timeline From CIPO dates

1985198819911994199720002003Application filedJuly 4, 1984Patent grantedMarch 22, 1988Term endedMarch 22, 2005

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