Alkaline cell container having interior conductive coating
CA 1263697 C · Owner: Duracell International Inc. · Inventors: Mohanta, Samaresh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating for the interior of alkaline cells is provided, so that a coated cell container or can may have a cell depolarizer inserted into the can without scraping the coating off the interior surface in any substantial amounts. The coating includes carbon particles (and may include other conductive particles such as nickel, silver or graphite particles carbon, black or acetylene black) carried in a binder with a volatile carrier which will evaporate at room temperature. A hard conductive coating is formed after the volatile carrier has evaporated, which reduces the initial interior cell depolarizer/can interfacial resistance, and maintains it after storage at a lower level than that of …
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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
- Granted December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
- 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.