Apparatus and process for decaffeinating a caffeine-containing liquid
CA 2181348 C · Owner: Imsco, Inc. · Inventors: Waldman, Alan A.; Crose, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A decaffeinating device includes a receiver for the caffeine-containing liquid, a conduit, and a reservoir for temporarily receiving the caffeine-containing liquid. There is also provided a caffeine separator which includes an assembly for generating an electrostatic field transverse to the direction of flow of the liquid. The caffeine separator includes spaced-apart opposed partitions which together define a passageway extending from an entry port to an exit port. The electrostatic field generating assembly includes electrodes which are insulated from each other by a substrate or caffeine receiver. The caffeine receiver retains the caffeine contained in the liquid and may be made of an …
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 December 14, 1995 and granted February 22, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2017.
- 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.