Static cof differential poly film ream wrap
CA 2882050 C · Owner: Coating Excellence International · Inventors: Nowak, Michael R.; Arent, Wendy L.; Mueller, Lou Ann
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A poly or polyester solid film ream wrapper comprising: a first layer comprising a , polypropylene, a biaxially oriented polypropylene (BOPP) or a polyester solid , film; a second layer comprising the polypropylene, the biaxially oriented polypropylene (BOPP), or the , polyester solid film; said first layer and said second layer having the same static coefficient of , friction, COF; a third layer between said first layer and said second layer the third layer , comprising at least one of polymer copolymer and terpolymer resins alone or blended with , polyester, or an adhesive; and a fourth layer located on said first or second layer on a side , opposite the second layer making the …
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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 December 30, 2003 and granted March 6, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 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.