Manufacturing process and apparatus for electrically insulating layers of electrochemical cell laminates
CA 2518059 C · Owner: Avestor Limited Partnership · Inventors: Regisser, Fabrice; Fraser, Serge; Gagnon, Gilles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A manufacturing process and an apparatus to carry out the process are disclosed which eliminate or at least significantly reduce the occurrence of damaging localized short circuits in the production of electrochemical generators. The process and apparatus include cauterization by oxidation of the anode edges of multiple electrochemical cell laminates thereby rendering the anode edges electrically insulated from adjacent cathodes and/or current collectors.
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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 March 4, 2004 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 4, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 4, 2026.
- 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.