Silicatic complexing agent for alkaline earth ions and method of preparing same
CA 1110824 A · Owner: Sud-Chemie Ag · Inventors: Fahn, Rudolf; Fenderl, Nikolaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a silicatic complexing agent and a method for producing said agent. The agent comprises acid activated mineral of the montmorillonite-beidellite series which has been charged with an alkali metal. The agent is useful for complexing and/or adsorption of alkaline earth metal ions.
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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
- Granted October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
- 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.