Process and an apparatus for flavouring a soluble coffee powder
CA 2074441 C · Owner: Koch, Peter · Inventors: Koch, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A frost is produced by the condensation of carbon dioxide charged with coffee aromas and with water. The frost is then transported by a supply means 2 into an enclosure 1 containing a certain quantity of oil renewed by addition and removal through pipes 4 and 5. The carbon dioxide is sublimated and the ice is melted forming an, emulsion with the oil. The emulsion is removed and the oil is separated from the water. Application to the incorporation of an oil enriched with coffee aromas in a soluble coffee powder.
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 July 23, 1992 and granted May 4, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 23, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2014.
- 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.