Solid electrolyte galvanic cell
CA 2106205 C · Owner: Izuti, Shyuiti · Inventors: Takeda, Kazunari; Mori, Shigeo; Kono, Michiyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cell wherein use is made of a solid electrolyte prepared by dissolving a trifunctional acryloyl-terminated alkylene oxide polymer having a polymer chain represented by general formula:, and an electrolyte salt in 220-950 wt.% based on the, polymer of a solvent, and cross-linking the polymer by applying an active radiation and/or heat wherein R', represents C1-C6 alkyl; R" represents hydrogen or methyl; and m and n represent each a number of 0 1 or above, provided that m + n ~ 35. A typical cell is one composed of a composite positive electrode comprising a solid electrolyte integrated with a positive electrode active material, prepared by mixing the above polymer with an electrolyte salt, …
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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 20, 1993 and granted December 14, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 20, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2015.
- 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.