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Expired Canadian patentCanada

Non-aqueous, speckle-containing liquid detergent compositions

CA 2295115 C · Owner: Smerznak, Mark Allen · Inventors: Smerznak, Mark Allen

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

Disclosed are non-aqueous, particulate-containing liquid laundry detergent compositions which are in the form of a suspension of particulate material essentially including colored speckles and preferably including peroxygen bleaching agent and an organic detergent builder dispersed in a liquid phase , preferably structured with a surfactant. Such compositions provide especially desirable cleaning and bleaching of fabrics laundered therewith and also exhibit especially desirable aesthetics.

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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 June 8, 1998 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 8, 1998
GrantedApril 22, 2003
Term endedJune 8, 2018
Patent numberCA 2295115 C
Classification (IPC)C11D17/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJune 8, 1998Patent grantedApril 22, 2003Term endedJune 8, 2018

Sources & verification

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