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Expired Canadian patentCanada

Powders of plant green juice and process for their production

CA 2039446 C · Owner: Japan Pharmaceutical Development Co. Ltd. · Inventors: Hagiwara, Hideaki; Hagiwara, Yoshihide

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

Powders of plant green juice having an improved stability and tastiness which are storable for a long period of time, characterized in that said powders comprise:, (a) dry powders of the plant green juice obtained by squeezing fresh raw edible green plants and, (b) a water-soluble alkaline naturally occurring mineral mixture dispersed, uniformly in said dry powder and the pH of a dispersion at the time of dispersing in water falls into a range of 6.2-9.5. The powders can be produced by adding a water-soluble alkaline naturally occurring mineral mixture to a plant green juice obtained by squeezing fresh raw edible green plants thereby to adjust the pH of said plant green juice to be a range …

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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 March 28, 1991 and granted March 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 28, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 28, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 28, 1991
GrantedMarch 16, 1999
Term endedMarch 28, 2011
Patent numberCA 2039446 C
Classification (IPC)A23L2/39 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMarch 28, 1991Patent grantedMarch 16, 1999Term endedMarch 28, 2011

Sources & verification

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