Polymer electrolyte composition for melt-bonded extrusion coating on the positive electrode of lithium-polymer electrolyte batteries
CA 2109246 C · Owner: Bathium Canada Inc. · Inventors: Duval, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polymer-based amorphous compositions are melt-bond extruded in the form of thin films directly onto the positive electrode of a solid lithium battery. This process presents numerous advantages relating to the solvent channel (speed cost, quality of the interface and no recycling or environmental problems).
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 October 26, 1993 and granted August 7, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 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.