Galvanic primary cell
CA 1303124 C · Owner: Jose, Horst-Udo · Inventors: Jose, Horst-Udo; Jung, Gerd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In an acid-type primary cell with a zinc anode containing reduced harmful substances, the usual toxic components of the zinc alloy such as mercury and cadmium are replaced by at least one of the elements indium and bismuth and by at least one, of the elements magnesium and lithium. These nonpoisonous substitutes inhibit hydrogen precipitation on the zinc and provide a degree of mechanical tensile strength commensurate with more conventional shaped zinc anodes. Additionally a slight, amount of lead is alloyed with the zinc anode to maintain ductility during the rolling process and as a supplemental protection against corrosion.
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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
- 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.