Conductive coated vented cathode collector for thin flat cells
CA 1047103 A · Owner: Union Carbide Corporation · Inventors: Kalnoki-Kis, Tibor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thin flat cell employing a metal anode (zinc), a cathode (manganese dioxide), an electrolyte (ammonium chloride) and a perforated cathode collector (steel); said cathode collector being coated with a continuous layer of a gas-permeable, electrolyteimpermeable polymeric material which allows the venting of undesirable gases formed within the cell while preventing any electrolyte loss from said cell. S P E C I F I C A T I O N 1.
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
- Granted January 23, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 23, 1996.
- 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.