Electrochemical cell stacks
CA 2333859 A1 · Owner: Kirk, Donald W. · Inventors: Thorpe, Steven J.; Graydon, John W.; Kirk, Donald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrochemical cell stack comprising stack walls and a plurality of electrolytic cells, within the stack walls each cell comprising cell members selected from an anode a cathode; a, membrane separator frame formed of a non-conductive material and having a frame first planar, peripheral surface; a frame second planar peripheral surface; and a central portion defining a, membrane-receiving aperture; a membrane within the aperture to provide an anolyte circulation, chamber and a catholyte circulation chamber distinct one from the other within the frame, an, impermeable cell end wall formed of a non-conductive material between the anode and cathode and, the anodes and cathodes of …
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 February 1, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2023.
- 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.