Process for recovering caffeine absorbed in activated carbon, and a process for decaffeinating coffee
CA 1301754 C · Owner: Klamer, Roelof · Inventors: Noomen, Pieter J.; Kaper, Louris; Klamer, Roelof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: A process for recovering caffeine absorbed in activated carbon, and a process for decaffeinating coffee, Abstract, A process for recovering from caffeine-loaded activated carbon by treatment of the loaded carbon with an acid. According to the present invention activated, carbon is treated with a compound having the formula,
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
- Granted May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
- 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.