Metal containers
CA 1333475 C · Owner: Hagopian, Sarkis Mardiros · Inventors: La Rovere, Ruggiero; Hagopian, Sarkis Mardiros
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improved metal container of three piece construction with a welded longitudinal body seam, having on its upper part an outward flaring flange to allow the double-seaming of the top end after filling the container. The bottom end is assembled from the inside over an inward turned body edge to form a labyrinth configuration with adjacent layers of material inside a rim. The rim has a substantially toroidal configuration with the lower edge of the can body forming convolutions that are alternate and adjacent with the edge and are not parallel with the base plane.
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 December 13, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 13, 2011.
- 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.