Opaque polymer film laminates
CA 1330032 C · Owner: Platta, Victor Aelred · Inventors: Platta, Victor Aelred; Liu, Leland Li-Jen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A surface treated oriented polymer laminate film is disclosed which possesses a comparatively rough non-blocking first, surface and a smooth lustrous second surface which is particularly well suited for further film processing operations such as metallization.
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
- Granted June 7, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2011.
- 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.