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Expired Canadian patentCanada

Water-continuous emulsions based on polysaccharides

CA 2090095 C · Owner: Unilever Plc · Inventors: Norton, Ian Timothy; Campbell, Iain James; Morley, Wayne Gerald

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

The invention concerns water-continuous emulsions having a fat content of 1-60 wt.%, and wherein the aqueous phase consists of a gelling polysaccharide capable of forming a gel while the shear modulus of the aqueous phase must fulfil specific requirements and while the gelling polysaccharides are present as microgels with a mean equivalent diameter of less than 100 µm. The emulsion is spoonable meaning that it fulfils specific, requirements as to yield value Bingham viscosity and, failure to stress. The emulsions can be used in non-dairy creams in dressings, and mayonnaises.

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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 February 22, 1993 and granted September 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 22, 1993
GrantedSeptember 1, 1998
Term endedFebruary 22, 2013
Patent numberCA 2090095 C
Classification (IPC)A23L29/20 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedFeb 22, 1993Patent grantedSep 1, 1998Term endedFeb 22, 2013

Sources & verification

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