Electrolytic cell with enlarged active membrane surface
CA 2593311 C · Owner: Beckmann, Roland · Inventors: Woltering, Peter; Kiefer, Randolf; Dulle, Karl-Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an electrolytic cell for the production of chlorine from an aqueous alkali halide solution which mainly consists of two semi-, shells an anode (4) , a cathode (5) and an ion exchange membrane (1) arranged between the electrodes. Spacer elements (2,3) are arranged between the ionexchange membrane and the electrodes for fixing the membrane in position and distributing the compressive forces, made of electrically conductive and corrosion-resistant material on at least one side of the membrane .
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 25, 2006 and granted April 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 25, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.