Method of producing magnesium chloride granules
CA 2263567 C · Owner: Norsk Hydro Asa · Inventors: Frigstad, Arne Bent; Langseth, Birger; Gronstad, Leif Kare
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method of producing magnesium chloride granules with a particle size in the range from 0.4 to 3.0 mm suitable for fluidization air drying and , chlorinating to anhydrous state comprising the steps of preparing a feed solution of MgCl2 having a 30 - 55 % by weight of MgCl2 atomisation of the , feed solution into the bed of already dried particles by pressure or compressed air, maintaining the particles in a fluidizing state and a bed temperature between 100 - 170 ~C, and discharging the particles continuously.
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 October 10, 1997 and granted April 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2019.
- 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.