Method for preparing lithium manganate having spinel structure
CA 2334377 A1 · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Nakashima, Takuya; Kamada, Tsuneyoshi; Numata, Koichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for preparing lithium manganate having spinel structure which comprises preparing a manganese dioxide material by electrolytic deposition neutralizing the manganese dioxide material with potassium hydroxide potassium carbonate or lithium carbonate to thereby prepare an electrolytically deposited manganese dioxide and then admixing the , electrolytically deposited manganese dioxide with a lithium material and burning the resultant mixture.
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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
- Filed April 6, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 6, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2022.
- 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.