Method of manufacture of metal matrix composite material including intermetallic compounds with no micropores
CA 2020335 C · Owner: Ohkijima, Jun · Inventors: Ohkijima, Jun; Kubo, Masahiro; Nukami, Tetsuya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metal matrix composite material having uniformly dispersed intermetallic compounds and no micropores is manufactured by forming a porous preform including 60% to 80% by volume fine fragments essentially made of aluminum, 1% to 10% by volume fine fragments essentially made of nickel, copper or both and 1% to 10% by volume, fine fragments essentially made of titanium so that these fine fragments occupy in total 62% to 95% by volume of said preform and, at least a part of the preform is contacted with a melt of a matrix metal selected from aluminum, aluminum alloy magnesium and, magnesium alloy, so that the porous preform is infiltrated with the melt under no substantial application of …
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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 July 3, 1990 and granted March 20, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 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.