Anti-transfer film and package
CA 2346151 A1 · Owner: Carlson, Andrea M. · Inventors: Pockat, Gregory Robert; Carlson, Andrea M.; Musil, Richard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A generally transparent flexible packaging structure having an anti-transfer layer, which, in a closed and sealed package is at or close to an interior surface of the package. A contained food product in the package has a tendency to deposit a food product, component on the interior surface of the packaging material and to thereby have a visually, obscuring affect on transparency of the packaging structure. Anti-transfer material in the, anti-transfer layer migrates to the interior surface of the package and interacts with the, visually-obscuring component of the contained food product thereby to , attenuate or, eliminate the visually obscuring effect of such component. Preferred …
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 May 2, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 2, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2023.
- 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.