Process for making reduced density coffee
CA 2017744 C · Owner: The Procter & Gamble Company · Inventors: Bertagna, Richard Walter; Kirkpatrick, Steven Jacob; Gutwein, Roger William
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an improved process for preparing reduced density roast coffee beans. The improved process comprises predrying green coffee beans to a moisture content of from about 0.5% to about 10% by weight fast roasting the beans, and cooling the roasted beans. The resulting roasted beans have a Hunter L-color of from about 14 to about 25 a Hunter .DELTA.L-value is, less than about 1.2 and a whole roast tamped bulk density of from about 0.28 to about 0.38 g/cc. The resulting roast coffee beans are more uniformly roasted than traditional reduced density coffee beans.
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 May 29, 1990 and granted March 4, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 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.
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.