Methods for alloying a metal containing material into a densified ceramic or cermet body and alloyed bodies produced thereby
CA 2104288 A1 · Owner: The Dow Chemical Company · Inventors: Pyzik, Aleksander J.; Beaman, Donald R.; Ott, Jack J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Place an alloying metal or an inorganic compound containing an alloying metal in contact with at least a portion of the exterior surface of a densified cermet or ceramic body and then heat the cermet body or the ceramic body to a temperature that allows alloying to occur. The temperature for the cermet body is close enough to the melting temperature of the metal portion of the cermet to allow alloying to occur. The temperature for the ceramic body is close enough for the body's glassy-phase component to soften and allow alloying to occur. The resultant alloyed bodies have a composition gradient that extends into the body perpendicular to the exterior surface portion if alloying stops …
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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 March 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 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.