Seal for alkaline primary battery
CA 1265189 C · Owner: Kulibert, Gregory S. · Inventors: Kulibert, Gregory S.; Kenyon, Kenneth H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The leakage of electrolyte from alkaline primary batteries is substantially reduced by improving the seal in such batteries. The novel seal is formed by applying a thin adherent plastic film to the surface of the metal container which forms a bond between the metal container and the sealant covered seal member normally used in such batteries.
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
- Granted January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
- 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.