Calcium aluminate cement
CA 1051931 A · Owner: Kaiser Aluminum And Chemical Corporation · Inventors: Masaryk, Joseph S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A refractory cement is made by combining a clinker which is substantially all CaO-Al2O3 (CA) with a roughly equal weight amount of an alumina which has been calcined to produce a carefully controlled morphology particularly, specific surface and pore size within relatively narrow ranges. Both materials are very finely divided at least, 80% passing a 325 mesh screen.
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 April 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 3, 1996.
- 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.