Method of producing a tinned food container
CA 2200965 C · Owner: Vaw Aluminium Ag · Inventors: Hocks, Klaus; Breuer, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method of producing a tinned food container wherein the container body 1 consists of a flat material, especially aluminium strip or tinplate strip which is deep-drawn and which, at least in the region of its planar end flange, is provided with a coating 2 especially a sealing coating, and wherein a cover 4 is provided with a further coating, especially a further sealing coating, and consisting of a foil material especially aluminium foil, is sealed on to the edge flange under the influence of pressure and/or heat. To make the production method more economical, it proposed that for producing a container body with an intermediate sealing layer 3 additionally …
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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 July 23, 1996 and granted July 4, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 23, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 2018.
- 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.