Water-jet injection device for dispensers
CA 2037024 C · Owner: Douwe Egberts Getranke Service Gmbh & Co. Kg · Inventors: Freese, Uwe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A water-jet tube for water jet injection devices is provided, in which a valve is arranged at a short distance from the free end of the water-jet tube and directly therein, which automatically closes as a function of the flow condition in the water-jet tube, and which preferably has a valve-closing body biased to the closed position by permanent-magnetic forces.
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 February 25, 1991 and granted April 16, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.