Superconducting heat transfer medium
CA 2268650 C · Owner: Qu, Yuzhi · Inventors: Qu, Yuzhi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A superconducting heat transfer medium (6) that has three basic layers (20,22,and 24), the first layer (20) being various combinations of metals and dichromate radical; the second layer (22) formed over the first layer (20) and being various combinations of metals such as cobalt, manganese, beryllium, strontium and the dichromate radical; and the third layer (24) formed over the second layer (22) and being various combinations of metal oxides, dichromates monocrystalline silicon, strontium chromate and p-titanium. The three layers (20,22 and 24) can be applied to a conduit (4) and then heat polarized to form a superconducting heat transfer device (2) that transfers heat without any net …
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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 24, 1997 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 24, 2019.
- 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.