Process for the production of soluble instant coffee in powder form
CA 2053100 C · Owner: Societe Des Produits Nestle S.A. · Inventors: Schlecht, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The process essentially comprises eliminating the undesirable constituents immediately after their production by subjecting an extract having a temperature above 150°C produced by the hottest cells, to flash evaporation and then reintroducing the extract into the extraction circuit. A second flash evaporation is then carried out being, separated from the first by at least one extraction cell the product of this second operation being reintroduced into the extraction circuit. Application to the production of soluble instant coffee in powder form.
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 October 9, 1991 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2013.
- 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.