Drink extraction apparatus
CA 2013149 C · Owner: Koga, Koji · Inventors: Sakai, Kiyoshi; Koga, Koji; Wakui, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A drink extraction apparatus utilizing a pump for pumping hot water from a hot-water tank and through a, pumping tube, pouring it onto the drink material in the drink material container, and for, upon completion of the extraction, sending into said drink material container pressurized air through said pumping tube to cut dripping from a filter by expelling hot water in the drink material residue, the air being pumped directly from the air intake or pumped once into an air tank the pressurized air.
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 March 27, 1990 and granted March 11, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 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.