Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body
CA 2068829 C · Owner: Eguchi, Ryuichi · Inventors: Kakimoto, Michiyuki; Hayashi, Tomohiko; Eguchi, Ryuichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coiled steel strip for the manufacture of a three-piece can body having, on one surface corresponding to the outer surface of the can body, a multiple-layer organic film including a thermoplastic resin layer and a layer of inks arranged on said thermoplastic resin layer to represent a label of a content to be filled in the can, and on the other surface corresponding to the inner surface of the can body, a film or films of a thermosetting coating and/or a thermoplastic resin said, multiple layer organic film extending continuously along the length direction of said strip in a plurality of stripes, each having a width slightly smaller than the circumferential length of the can body and …
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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 May 15, 1992 and granted December 15, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 15, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 15, 2014.
- 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.