Stable pressure sensitive shrink label technique
CA 2087588 C · Owner: Avery Dennison Corporation · Inventors: Coward, Roderick Thomas; Lin, Kenneth S. C.; Wilson, Douglas Wayne
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Heat shrinkable labels formed of a layer (16) of a polyolefin such as polypropylene have a permanent acrylic pressure sensitive adhesive (20) on one surface thereof. and may be mounted on a release coated backing strip (12). A layer (22) and/or graphics (24) may be applied to the labels. and the graphics may be protected by varnish (34) or a second layer (18) of heat shrinkable polyolefin material. The graphics may be formed of a metal colored ink (86. 90. 94) which may have highly reflective metal flakes. and in some cases the metallization layer may be omitted. In a simple embodiment the graphics (94) may be reverse printed on the lower surface of the polypropylene layer (92) adjacent the …
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 November 24, 1998. 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.