Magnesium aluminate spinel refractory
CA 1333076 C · Owner: Indresco Inc. · Inventors: Knauss, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A refractory mix for forming an in situ magnesium aluminate spinel brick consisting essentially of about 65 to 95 wt.% magnesite having an MgO content of at least about 92 wt.% and, correspondingly about 35 to 1, wt.% calcined bauxite having an alumina content of at least about 83 wt.% and a silica content of no more than about 7 wt.%; the total silica content of the mix being no more than about 4 wt.% and a magnesium aluminate spinel refractory shape prepared by pressing and firing the the above refractory mixture. The invention also comprises the process of forming the refractory.
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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 November 15, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 15, 2011.
- 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.