Packaging
CA 1324329 C · Owner: Cmb Foodcan Plc · Inventors: Robinson, Melvin Edward Riddell; Adams, John Francis Edward; Folland, Rickworth
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a wall for a package comprising:, (a) an outer set of one or more layers (1-4) and (b) an inner set of one or more layers (5-6) which layer or the outermost of which layers (5) comprises a composition comprising a polymer and having oxygen-scavenging properties,-, wherein - (i) the outer set of layers would have if separate, from the inner set and in the absence of any oxygen-scavenging properties in any of the layers or the layer constituting the set, a permeance for oxygen, of, not more than 1.5 cm3/(m2 atm day); (ii) the inner set of layers would have if separate, from the outer set and in the absence of oxygen-scavenging properties in any of the layers or …
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 November 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 2010.
- 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.