Heat-sealable laminate
CA 2433664 C · Owner: Avery International Corporation · Inventors: Sandt, Richard L.; Lum, Henry Jr.; Kittel, Mark D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a heat-sealable laminate (200) comprising: a , facestock (210) having an upper surface (214) and a lower surface (216); a heat-activatable first adhesive layer (217) underlying the lower surface (216) of the facestock (210); and a second adhesive layer (230) overlaying the upper surface (214) of the facestock (210), with the proviso that the laminate (200) is characterized by the absence of either an adhesion promoting layer or an abrasion-resistant transparent coating layer positioned between the upper surface (216) of the facestock (210) and the second adhesive layer (230). These heat-sealable laminates (200) may be used in providing pictorial and/or …
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 December 18, 2001 and granted August 16, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 18, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2023.
- 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.