Method for mixing two liquids or liquid and solid material together, and for simultaneously separating another liquid or solid from the liquid
CA 2039688 C · Owner: Outokumpu Oy · Inventors: Nyman, Bror Goran; Hultholm, Stig-Erik; Lilja, Launo Leo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for maintaining a continuous mixing in a liquid throughout the transversal reactor space, and for simultaneously separating from the liquid either another liquid, a solid material or possibly, a gas. The invention also relates to an apparatus whereby the mixing is maintained and simultaneously another phase is separated from the liquid under agitation.
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 April 3, 1991 and granted December 6, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 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.