Process and plant for producing a lining on the inner walls of a metallurgical vessel
CA 2030787 A1 · Owner: Daussan, Andre · Inventors: Daussan, Gerard; Daussan, Andre; Daussan, Jean-Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Company called:, DAUSSAN ET COMPAGNIE "Process and plant for producing a lining on the inner walls of a metallurgical vessel" (Inventors: Jean-Charles DAUSSAN, Gérard DAUSSAN and André DAUSSAN) A metallurgical vessel (1) whose inner walls to be lined are relatively hot is placed on a suitable support; the support is tilted and the matallurgical vessel (1) is brought successively into a number of different positions, in each of which an inner wall or a part of wall of the vessel is substantially horizontal and turned upwards; in each of the above mentioned positions at least one layer of a substantially dry material comprising a mixture of refractory particles and a binder of the …
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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
- Filed April 25, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 25, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2012.
- 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.