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Expired Canadian patentCanada

Storage stable calcium-supplemented beverage concentrates

CA 2123604 C · Owner: Butterbaugh, Jeffrey Lee · Inventors: Butterbaugh, Jeffrey Lee; Gore, William Jeffrey; Burkes, Alice Lyles

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

This application relates to storage stable beverage concentrates for preparing beverages and food compositions which are nutritionally supplemented with significant levels of calcium and to a method for preparing these concentrates. The beverage concentrates have a greater than 5 fold concentration and comprise: (a) from about 0.2 % to about 1.20 % by weight, solubilized, calcium; (b) from about 0.7 % to about 8.25 % by weight, of an acid component comprising a mixture of citric acid and malic acid wherein said mixture has a weight ratio of citric acid to malic acid of from about 5:95 to about 50:50; (c) from about 0.05 % to about 1.2 %, by weight, of an acidic anion component selected from …

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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 December 7, 1992 and granted February 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 7, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 7, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 7, 1992
GrantedFebruary 17, 1998
Term endedDecember 7, 2012
Patent numberCA 2123604 C
Classification (IPC)A23L2/38 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedDec 7, 1992Patent grantedFeb 17, 1998Term endedDec 7, 2012

Sources & verification

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