Label film for deep-drawing methods
CA 2580406 C · Owner: Schmitz, Bertram · Inventors: Tews, Wilfrid; Kochem, Karl-Heinz; Schmitz, Bertram
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the use of a biaxially oriented film having a microporous , layer containing on propylene polymer and at least one $g(b)-nucleating agent and , whose microporosity is produced by transforming $g(b)-crystalline polypropylene , when the film is drawn in the labelling of containers during a drawing process.
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 October 5, 2005 and granted September 16, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 5, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.