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Expired Canadian patentCanada

Detergent composition with fabric softening properties

CA 1340923 C · Owner: Foster, Francis Geoffrey · Inventors: Foster, Francis Geoffrey

CIPO record

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Abstract From the Canadian patent

A fabric treatment composition contains at least a detergent active material, a fabric softening agent and 0.5 to 3% a nonionic substituted cellulose ether derivative which has an HLB of 3.1 to 4.3 and a gel point of less than 58°C, which improve softening performances on cotton while controlling deposition on synthetic fabrics. Ethyl, hydroxyethyl or methyl hydroxyethyl cellulose ethers are preferred. The detergent active material is anionic or a mixture thereof with other detergent active materials and may be present at 2 to 50% of the composition. The softening agent may be soap a, cationic material, a fatty amine and/or a clay with a soap/cationic mixture being preferred, and may be …

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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 14, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 14, 2017.
  • 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 21, 1986
GrantedMarch 14, 2000
Term endedMarch 14, 2017
Patent numberCA 1340923 C
Classification (IPC)C11D3/22 +2 more

Timeline

Timeline From CIPO dates

19871991199519992003200720112015Application filedJuly 21, 1986Patent grantedMarch 14, 2000Term endedMarch 14, 2017

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