Lead alloy-ceramic composite electrode plate
CA 2218564 A1 · Owner: Brilliance Storage Battery Development Inc. · Inventors: Zhang, Bao Yi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to an electrode plate of a lead acid battery. The electrode plate comprises of a grid of non-conductive, thermally non-expansive material having a matrix of grid openings, a frame of lead alloy having a matrix of tubes that are insertable in the grid openings of the thermally non-expansive material, and an active material that is inserted into the tubes of the lead alloy frame. The preferable material for the grid of thermally non-expansive material is ceramic. The invention also provides for a double-face plate which has a pair of grids of non-conductive thermally non-expansive material enclosing a pair of lead alloy frames with the active material in the tubes 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
- Filed October 16, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2019.
- 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.