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Expired Canadian patentCanada

Fast roasted coffee providing increased brew strength and darker cup color with desirable brew acidity

CA 2228585 C · Owner: Gutwein, Roger William · Inventors: Kirkpatrick, Steven Jacob; Gutwein, Roger William

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

Roast and ground or flaked coffee products which provide more brew strength and cup color at lower levels of brews solids. These coffee products comprise darker fast roasted coffee that is , predominantly high acidity-type coffee that provide when brewed under, appropriate conditions a consumable coffee beverage having: (1) a brew solids level of from about 0.4 to about 0.6 %; (2) a Titratable Acidity of at least about 1.52; (3) a brew absorbance of at least about 1.25 provided that when the Titratable Acidity is in the range of from about 1.52 to about 2.0, the brew absorbance is equal to or greater than the value defined by the equation: 1.25 + 0.625 x (2.0-TA) where TA is the …

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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 August 9, 1996 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 9, 1996
GrantedJanuary 22, 2002
Term endedAugust 9, 2016
Patent numberCA 2228585 C
Classification (IPC)A23F5/04 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedAug 9, 1996Patent grantedJan 22, 2002Term endedAug 9, 2016

Sources & verification

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