Laminates and packaging materials
CA 2087726 A1 · Owner: Flom, Atle · Inventors: Flom, Atle
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A packaging carton consists of a laminate comprising inner and outer layers (7, 2) which serve to stiffen the laminate and an, intermediate layer (5) intermediate the inner and outer layers (7 2) and by way of which the inner and outer layers (7 2) are tied , together. In one embodiment the inner layer (7) and the, intermediate layer (5) both serve as relatively good barriers to O2 migration, the intermediate layer (5) being EVOH or PA extruded or co-extruded onto the inner layer (7), which comprises M-PET G-PET, M-OPP, G-OPP or greaseproof paper the coated surface (8) of, the M-PET, G-PET M-OPP, or G-OPP, facing outwards. In another embodiment, an aluminium-metallized EVOH film constitutes …
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
- Filed July 26, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 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.