Packing container
CA 1325413 C · Owner: Kjelgaard, Tom · Inventors: Kjelgaard, Tom
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Packing containers manufactured from plastic-coated paper and having a sealing fin wherein the packing material is joined inside to inside in a sealed union, the material layers so joined together accomodating between them, at least along a part of the sealing fin, a tearing strip inserted in the sealing fin which is sealed to the inner plastic coating of the packing material. To facilitate the pulling off of the tearing strip on opening of the container, the packing material is provided at least within the region of the part of the sealing fin accomodating the strip with a material layer adapted to weaken adherence which is applied between the fibrous layer and the inner plastic coating of …
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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
- Granted December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 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.