Metalized film laminates with anticorrosion agents
CA 2443663 C · Owner: Hartman, Michael Scott · Inventors: Rassouli, Mahmood Reza; Hartman, Michael Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multilayered laminate films for food packaging applications which comprise at least: (a) a layer of oriented or nonoriented polyester terephthalate or oriented or nonoriented polypropylene (b) a layer comprising at least one metal and (c) a layer comprising at least one additive suitable for incidental food contact which provides protection against corrosion to a layer containing at least one metal is described.
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 September 30, 2003 and granted March 6, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2025.
- 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.