Novel manufacturing method of aragonite calcium carbonate
CA 2635233 C · Owner: Ahn, Ji-Whan · Inventors: Ko, Sang-Jin; Ahn, Ji-Whan; Kim, Jeong-Hwan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is related to the methods of manufacture of aragonite in the carbonation method, in which the particle size and aspect ratio may be controlled and practically 100%-pure and single-phase aragonite may be obtained by repeating the carbonation reaction.
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 December 31, 2005 and granted April 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 31, 2025.
- 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.