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Expired Canadian patentCanada

High foaming nonionic surfactant based liquid detergent

CA 2127348 C · Owner: Erilli, Rita · Inventors: Kern, Ronald; Erilli, Rita; Repinec, Stephen

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A high foaming, nonionic surfactant based light duty liquid detergent with, desirable cleansing properties and mildness to the human skin comprising: a water, soluble nonionic surfactant; at least one water soluble or dispersible foaming, anionic, surfactant; a zwitterionic betaine surfactant and a dialkyl sulfosuccinate , ester.

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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

  • Filed July 4, 1994 and granted March 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2016.
  • 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 4, 1994
GrantedMarch 11, 2003
Term endedJuly 4, 2014
Patent numberCA 2127348 C
Classification (IPC)C11D1/94 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 4, 1994Patent grantedMarch 11, 2003Term endedJuly 4, 2014

Sources & verification

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