Process and apparatus for producing shaped slabs of particle stabilized foamed metal
CA 2109957 C · Owner: Kenny, Lorne Douglas · Inventors: Jin, Iljoon; Kenny, Lorne Douglas; Sang, Harry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process and apparatus are described for manufacturing particle stabilized foamed metal slabs. A foam (25) is first formed in a foaming chamber (20) by heating a composite of a metal matrix and finely divided solid stabilizer panicles above the solidus temperature of the metal matrix and discharging gas bubbles into the molten metal composite below the surface thereof to thereby form a stabilized liquid foam on the surface of the molten metal composite. The stabilized liquid foam (25) is continuously drawn off the surface of the molten metal composite and is solidified into a shaped foam product while being continuously drawn off.
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 May 29, 1992 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2014.
- 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.