Metal oxide dielectric dense bodies, precursor powders therefor, and methods for preparing same
CA 2000626 C · Owner: Tanous, Adam C. · Inventors: Musolf, Douglas J.; Thompson, Mark S.; Wiseman, Gary H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metal oxide dielectric dense body, comprising (I) grains having a predominant crystalline phase (a) a primary metal oxide selected from the group consisting of silicon and magnesium oxide and (b) optionally a secondary metal oxide selected from the group consisting of aluminum and zinc oxide and (II) between about 1 and about 20 atom % bismuth vanadium, or boron oxide or combinations thereof discontinuously located at the boundaries of the crystalline grains or as inclusions in the crystalline grains the atom, %'s based on the total atoms of bismuth vanadium, boron, silicon, magnesium, aluminum and zinc. The dense body has a, density which is at least 95% of theoretical.
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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 October 13, 1989 and granted December 28, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 13, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.