Sealed electrochemical generator equipped with a circuit-breaker terminal
CA 2244156 A1 · Owner: Dewulf, Frederic · Inventors: Dewulf, Frederic; Gerin, Norbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a sealed electrochemical generator (1) equipped with a circuit-breaker terminal (3) providing the electrical connection between an external contact piece (7) of said terminal and one (6) of its electrodes positive or negative of the generator, said external contact piece (7) of the terminal being electrically connected to a wall (11) ensuring the impermeability of the terminal and capable of being deformed by the action of an increased internal pressure said wall (11) being connected to said electrode (6) by means (13 14, 16) ensuring the current conduction this conduction being interrupted when an internal pressure P greater than a predetermined pressure P¿1? occurs …
Read the whole patent
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 November 27, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 27, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 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.