Process for producing soluble coffee employing countercurrent multistage slurry extraction system
CA 1093375 A · Owner: General Foods, Limited · Inventors: Morrison, Mitchell G.; Hurlow, Gerald S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Roasted and ground coffee may be extracted by a countercurrent multistage slurry extraction system to produce a coffee extract of 10 to 30% concentration at yields above 40%. The roasted and ground coffee is preferably finely ground and thus fines from conventional screening operations and presscake from which oil has been expelled and recovered can be readily processed as the feed material in the countercurrent slurry extraction. The concentrated extract may be dried by conventional methods to obtain a dry soluble coffee beverage product having desirable taste and aroma constituents. -1-
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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 January 13, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 13, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.