Suspension of aqueous magnesium oxide
CA 1249497 A · Owner: Martin Marietta Corporation · Inventors: Van De Walle, Richard H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aqueous magnesium oxide suspension is disclosed which comprises from about 8 to about 50% by weight MgO based on the, combined weight of water MgO, suspension aid, and surface active dispersant. Suspension aids such as zanthan gum and guar gum are utilized in the presence of surface active lignin sulfonate dispersants to provide a highly stable concentrated suspension useful as a base for fertilizers, animal feeds etc.
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
- Granted January 31, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 2006.
- 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.