A method for isolation and production of magnesium metal, magnesium chloride, magnesite and magnesium based products
CA 2336652 A1 · Owner: Ballou, Brian J. · Inventors: Ballou, Brian J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a method for the isolation and production of magnesium metal, magnesium chloride and magnesium-based products from the leaching of laterite material, by isolating magnesium metal magnesium chloride and , magnesite from any step in the leaching of laterite material.
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 August 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 14, 2020.
- 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.