Expired Canadian patentCanada
High shrink energy/high modulus thermoplastic multi-layer packaging film and bags made therefrom
CA 2013587 C · Owner: Garland, Steven B. · Inventors: D'Entremont, Donald J.; Garland, Steven B.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an oriented heat-shrinkable, packaging film, having a layer of polyamide or polyester. The film has a high shrink energy and high modulus. 5/890829.1/SPECFLDR 03/22/90
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 April 2, 1990 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 2, 1990
GrantedJune 5, 2001
Term endedApril 2, 2010
Patent numberCA 2013587 C
Classification (IPC)B32B27/08 +2 more
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.