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Expired Canadian patentCanada

Conditioning shampoo containing amine functional polydiorganosiloxane

CA 1259262 A · Owner: Dow Corning Corporation · Inventors: Kohl, Gretchen S.; Tassoff, James A.; Chandra, Grish

CIPO record

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Abstract From the Canadian patent

Abstract, A conditioning shampoo composition is disclosed containing a nonionic surfactant of the alkanolamide or amine oxide type, an amine functional methylsiloxane polymer, a detersive surfactant of the anionic or amphoteric type, and water. A method of preparing the shampoo composition as a stable solution is also disclosed. During use, the shampoo composition simultaneously cleanses the hair and deposits the siloxane polymer conditioning component on the hair.

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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 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 12, 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.
FiledOctober 1, 1985
GrantedSeptember 12, 1989
Term endedSeptember 12, 2006
Patent numberCA 1259262 A
Classification (IPC)A61K8/40 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 1, 1985Patent grantedSep 12, 1989Term endedSep 12, 2006

Sources & verification

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