Packaging method for perishable food products, and package for use therewith
CA 2277072 A1 · Owner: Buchko, Raymond G. · Inventors: Buchko, Raymond G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for packaging of perishable food products involves initially packaging the food product in a receptable containing an inert gas atmosphere and sealing a film to the receptacle. The inert gas atmosphere prevents deterioration of the food product subsequent to shipment from a central processing facility. The receptacle includes a sealing flange and a tab portion extending from the sealing flange to which the film is sealed. To , prepare the food product for display at a retail establishment the tab and , the film sealed thereto are removed from the package to form an opening , between the film and the receptacle. An atmosphere exchange operation is carried out through the …
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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 January 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2020.
- 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.