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Expired Canadian patentCanada

Preparation of beverages

CA 2018425 C · Owner: Kwon, Steven Soon-Young · Inventors: Main, Jeffrey; Kwon, Steven Soon-Young; Smith, Constance Louise

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 ready-to-serve heat treated beverage comprising a beverage vehicle containing milk protein, a beverage base containing coffee or tea, a buffering agent, kappa carrageenan in an amount up to 0.010% and a chelating agent for cations in an amount up to 0.25% containing at least 0.005% of sodium alginate and/or propylene glycol alginate the, said amounts being by weight based on the total weight of the beverage.

Read the whole patent

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 6, 1990 and granted October 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2012.
  • 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 6, 1990
GrantedOctober 23, 2001
Term endedJune 6, 2010
Patent numberCA 2018425 C
Classification (IPC)A23F5/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 6, 1990Patent grantedOct 23, 2001Term endedJune 6, 2010

Sources & verification

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