Extruded thermoplastics, liquid crystalline polymers, and blends thereof having a planar morphology
CA 2107344 C · Owner: Haghighat, Ross R. · Inventors: Blizard, Kent G.; Rubin, Leslie S.; Lusignea, Richard W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to articles of manufacture such as films, tubes, and coatings, comprising a multiaxially oriented film having a planar morphology wherein the article of manufacture , comprises at least one thermoplastic flexible polymer, at least one thermotropic liquid crystalline polymer or a blend , thereof. Recyclable articles of manufacture having improved barrier properties are also provided.
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 March 31, 1992 and granted January 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 31, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 31, 2014.
- 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.