Closure for galvanic dry cells
CA 1047598 A · Owner: Union Carbide Corporation · Inventors: Affeldt, Richard B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A galvanic dry cell includes a cylindrical container having an open end provided with a closure having a centrally disposed depending neck adapted to be slid over and secured to the carbon rod of the cell and a peripherally disposed skirt adapted to be slid on and secured to the upper rim of the container thereby providing a closure seal for the container.
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, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 1996.
- 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.