Nitrates
CA 2617344 C · Owner: Bewsey, John Arthur · Inventors: Bewsey, John Arthur
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing anhydrous calcium nitrate anhydrous magnesium nitrate , or mixture thereof involves removing water from a solution of calcium nitrate magnesium nitrate or mixture thereof in a pulse combustion drier. The invention also provides a mixture of anhydrous calcium nitrate anhydrous , magnesium nitrate and the individual anhydrous nitrate salts in a sealed container.
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 July 27, 2006 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.