Multilayer material and device comprising same
CA 2176221 A1 · Owner: Lewiner, Jacques · Inventors: Lagues, Michel; Lagues, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The object of the present invention is a superconductive material formed as a film comprised of monomolecular layers (2 3, 4, 5) stacked on a substrate , (1), wherein said film includes at least one first set (R) of layers which form a reservoir of electrical charges and a second set (S) of layers which , form a superconductive cell and which contain a number of superconductive copper oxide layers (4), separated from each other by spacing layers (5) the , reservoir and the superconductive cell being adjacent in the layer stack. According to the invention, n is an integer of at least 4 and the spacing , layers are of chemical formula Ca1-xMx and are free of strontium wherein x is , a …
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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 November 10, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2016.
- 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.