Cap assembly of battery
CA 2249202 C · Owner: Samsung Display Devices Co. Ltd. · Inventors: Kim, Hyun-Woo; Hwang, E-Ju; Miura, Yoshiaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cap assembly of a battery, comprising: a cap plate for covering the upper portion of a battery case; a positive terminal installed on the cap plate insulated, from the cap plate; a rivet member having a rivet protrusion through which a vent, hole is formed, inserted through holes formed in the cap plate and the positive terminal for riveting them together, the rivet member electrically connected to the positive terminal; a safety member installed at the lower end of rivet member blocking the vent hole; and a positive tap fixing member attached to the lower end of the safety member and joined to a positive tap of an electrode assembly in the battery case, wherein the safety member is …
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 October 5, 1998 and granted December 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 5, 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.