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Expired Canadian patentCanada

Preparation of low alcohol beer

CA 1304706 C · Owner: Grain Processing Corporation · Inventors: Witt, Paul R.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract Of The Disclosure Beer of low alcohol content is produced by preparing an all-malt brew using a high-temperature-tolerant cellulase. Mashing is conducted at a temperature of approximately 78-80° C. After mashing, the wort is separated from the mash and fermented with yeast. After fermentation the all-malt beer is supplemented with a low dextrose equivalent (D.E.) starch hydrolyzate, filtered and treated with post-fermentive hopping and malt coloring if desired. Finally, the brew is diluted with acidified deaerated water so as to contain not more than about 0.5% alcohol by volume.

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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

  • Granted July 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 12, 1988
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304706 C
Classification (IPC)C12C11/00 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedSep 12, 1988Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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