Insoluble mixed heavy metal polysulfide cathode
CA 1295666 C · Owner: Barnette, Luverne Harleigh · Inventors: Bowden, William Lee; Barnette, Luverne Harleigh; Demuth, David Leigh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Mixed heavy metal polysulfides which are insoluble in non-aqueous electrolytes and having the formula M(1)w +m(2)x +m(Sy)z -2(wherein M(1) and M(2) are different heavy metal atoms n and m are integers, representing the valence states of M(1) and M(2) respectively w and x are, integers representing the stoichiometry of M(1) and M(2) respectively in the polysulfide, S is sulfur, nw + mx = 2z and y is greater than 4.5) are utilized as very high energy density cathodes in non-aqueous electrochemical cells.
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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 February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 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.