Inherently stable packaging container consisting of sheet material recycling process for the container
CA 2086337 C · Owner: Meixner, Hans-Werner · Inventors: Meixner, Hans-Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An inherently stable packaging container for foods produced by means of a folding process if, appropriate with folded-in flaps, which can be recycled in a profitable, that is, economical manner. The material consists of a metal sheet suitable for folding (bending) by hand, which is coated with a plastic skin which leaves no pollutant residues and releases no pollutants apart from CO2 in the course of the recycling (melting) process for the metal. The edges of the container are welded together with the aid of the plastic coating. After folding back the flaps the, container can easily be flattened by hand (volume reduction) and displays no tendency to spring open after which such containers …
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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 June 18, 1991 and granted January 26, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2013.
- 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.