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Expired Canadian patentCanada

Liquid detergent composition

CA 1197160 A · Owner: Unilever Plc · Inventors: Toet, Wilhelmina K.; Van Voorst Vader, Frederik; Van De Pas, Johannes C.

CIPO record

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Abstract From the Canadian patent

The invention pertains to aqueous liquid detergent compositions of the suspending type which comprise a nonionic detergent active material and/or derivative thereof in admixture with an anionic detergent active material and/or cationic detergent active material and, electrolytes which consist of one or more salting-out electrolytes and one or more auxiliary electrolytes having a lyotropic number of 9.5 or above the com-, bination of said salting-out and auxiliary electrolytes giving improved stability.

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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 November 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 26, 2002.
  • 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 9, 1982
GrantedNovember 26, 1985
Term endedNovember 26, 2002
Patent numberCA 1197160 A
Classification (IPC)C11D1/83 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedNov 9, 1982Patent grantedNov 26, 1985Term endedNov 26, 2002

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