Metallic vapor condenser capable of circulating a liquid metal
CA 2038767 C · Owner: Matsuoka, Toshio · Inventors: Matsuoka, Toshio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a metallic vapor condenser for use in recovering, in the form of liquid metal metallic vapor, of a metal having a medium boiling point the liquid, metal of the molten metal is sent from a splash chamber to be circulated through a skimming sump a cooling, sump, and a casting bath to the splash chamber. The liquid metal is always refreshed by circulation in the casting bath to avoid solidification of the metal. A subsidiary chamber may be coupled to the splash chamber to reserve the liquid metal to decrease dust and dross floating on the liquid metal.
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
- Filed March 21, 1991 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 21, 2013.
- 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.