Galvanic cell
CA 2087555 C · Owner: Noda, Tomohiko · Inventors: Noda, Tomohiko; Izuti, Shyuiti; Imachi, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A galvanic cell is disclosed in which at least one of the negative electrode, the positive electrode and the separator comprises a solid electrolyte prepared by doping an ionic compound to an organic polymer. The organic polymer is a polymer obtained by crosslinking an organic compound having a structure of the general formula:, Z-(A)~ -(E)~ -Y ~ (I) in which Z is a residue of a compound containing at least one active hydrogen; A is represented by the formula: wherein n is an integer of from 0 to 25 and R is alkyl having 1 to 20 carbon atoms, alkenyl, aryl or alkylaryl; E is at least one of -(R2O)-, wherein R2 is alkylene having two or more carbon atoms; Y is an active hydrogen or a …
Read the whole patent
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 19, 1993 and granted March 28, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 19, 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.