Method of producing glazed ceramic building materials
CA 1057486 A · Owner: Euroc Administration Ab · Inventors: Persson, Gosta A.; Engstrom, Carl B. A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing cellular ceramic building materials from SiO2-containing starting materials is disclosed according to which method at least the bottom of a refractory mould is covered with a first layer of a glass material or a glass forming composition which does not expand when heated and which has a melting point of 800 - 1200°C whereafter the-, SiO2-containing starting material used for producing the cellular ceramic is applied in the form of a second layer on the first layer in the mould, whereafter the mould and its contents are heated under strongly ???diging conditions to 800 - 1000°C for a period of time of such duration that the ceramic starting material and the glass …
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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 July 3, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 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.