Method for joining parts of ceramic high-temperature superconductor material
CA 2034248 A1 · Owner: Preisler, Eberhard · Inventors: Bock, Joachim; Preisler, Eberhard; Holzem, Johannes
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Method for joining parts of ceramic hightemperature superconductor material, Abstract of the disclosure For joining parts of ceramic high-temperature superconductor material of the composition, Bi(2+a-b)(Sr(1-c)Cac)(3-a)PbbCu(2+d)Ox where a is 0 to 0.3, b is, 0 to 0.5, c is 0.1 to 0.9 and d is 0 to 2 and x has a value depending on the state of oxidation of the metals present, the end faces of the parts located at a gap spacing apart from one another are heated by means of a fuel gas/oxygen flame to temperatures from 750 to 875°C. Simultaneously a rod of the same material above the, spacing gap is heated until the melt thereof drips off into the gap between the end faces of the two parts …
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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 January 16, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2013.
- 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.