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Expired Canadian patentCanada

Low phosphate laundry detergent compositions

CA 1209005 A · Owner: The Procter & Gamble Company · Inventors: Cook, Thomas E.; Dolle, Ernest W.

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

Abstract of the Disclosure, Detergent compositions with a mixture of a conventional nonionic detergent surfactant, an alkylpolysaccharide detergent surfactant, and a cationic fabric-softening/antistatic compound deposit the cationic material more effectively than prior compositions containing only the conventional nonionic detergent surfactant and the cationic material.

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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 August 5, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 9, 1983
GrantedAugust 5, 1986
Term endedAugust 5, 2003
Patent numberCA 1209005 A
Classification (IPC)C11D1/83 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedMay 9, 1983Patent grantedAug 5, 1986Term endedAug 5, 2003

Sources & verification

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