Containers
CA 1100062 A · Owner: Metal Box Limited · Inventors: Imber, William I.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A metal can having a body with a welded side seam, the seam being crevice-free on at least the inner or outer surface of the can body the edge, of the can body at one end thereof being curled with said surface on which the seam is crevice-free being on the outside of the curl, and said end of the can body being closed by a diaphragm adhesively secured round said curled edge.
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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
- 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.