End cap assembly for an electrochemical cell
CA 2295998 A1 · Owner: Yoppolo, Robert A. · Inventors: Sargeant, Sean A.; Wiacek, Marian; Yoppolo, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An end cap assembly (10) for an electrochemical cell for example an alkaline , cell, is disclosed comprising an exposed terminal end cap (20) of single piece construction having a convoluted surface an electrically insulating member , (100) and a metal support disk (70) between the insulating member (100) and the terminal end cap (20). The end cap assembly (10) is inserted into the open end of the cell housing after the cell contents have been supplied. A portion of the end cap surface is a flat annular step (23) which improves contact between the end cap and the electrically conductive portion of a condition tester (155) for the cell which may be integrated into the cell label (180). …
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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 July 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2020.
- 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.