Crystalline rare earth alkaline earth copper oxide thick film conductor
CA 1305259 C · Owner: Mir, Jose M. · Inventors: Carnall, Edward Jr.; Strom, Laurie A.; Mir, Jose M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A process is disclosed of forming an electrical conductor on an insulative substrate by coating onto the substrate particles of metal-ligand compounds of each of rare earth, alkaline earth and, copper, where the ligands are chosen to be volatilizable. The particles are heated in the presence of oxygen to form an intermediate coating on the substrate, and the intermediate coating is converted to a crystalline, electrically conductive form. Either thick or thin films can be formed by the process, and in preferred forms the films can be superconducting at elevated temperatures.
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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
- Granted July 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 14, 2009.
- 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.