Heating furnace or the like with refractory casing
CA 1186138 A · Owner: Firma Plibrico Company Gmbh · Inventors: Josten, Hans; Struzik, Erich; Hofmann, Hans-Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a refractory casing for heating furnaces and the like, which includes A12O3 between 25% and 94% by weight. The casing is made from a plastic material in granular form which is pneumatically applied and homogeneously compressed. The material sets by a chemical/ceramic process.
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 30, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2002.
- 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.