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Expired Canadian patentCanada

Stabilized gel shampoo

CA 1256033 A · Owner: Beecham Group P.L.C. · Inventors: Clarkson, Quinten R.M.; Stothard, Heather E.; Wilkins, Anne L.

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

A shampoo composition in gel form is disclosed comprising a, detergent, from 0.1 to 5% by weight of a stabilising humectant polymer selected from non-ionic guar gums, hydroxy C-1 6 alkyl ethers and hydroxy C1-6 alkyl esters of cellulose, and a cosmetically acceptable excipient.

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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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 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.
FiledJuly 31, 1985
GrantedJune 20, 1989
Term endedJune 20, 2006
Patent numberCA 1256033 A
Classification (IPC)A61K8/73 +1 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedJuly 31, 1985Patent grantedJune 20, 1989Term endedJune 20, 2006

Sources & verification

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