Composite refractory articles
CA 1202464 A · Owner: Glaverbel · Inventors: Deschepper, Pierre; Robyn, Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is concerned with a method of manufacturing a composite refractory article having a flow passage through which a molten metal stream may be conducted and comprising a first body of refractory material which defines a surface of that passage the first body being bonded to a second body of refractory material. The method of the invention is characterized in that the second body defines a passageway of greater cross-sectional dimensions than the flow passage and that the first body of refractory material is provided within such passageway for defining the flow passage surface, the first body being formed in the larger passageway by causing its refractory material to cohere and …
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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 April 1, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 2003.
- 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.