Imagable linerless pressure sensitive adhesive labels
CA 2176180 C · Owner: Dotson, Mark · Inventors: Laurash, David F.; Dotson, Mark; Mehta, Rajendra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A linerless series of pressure sensitive adhesive labels is provided which have on one or more selected portions (18) thereof a series of imagable coatings (34) which may be activated to form colored images or areas (24 26). The, series of labels may be in the form of a continuous web (28) having first and second surfaces (30, 32) with a series of, imagable coatings of color formers and color developers on the first surface (30) of the web. A coating of a release material (38) overlies the imagable coatings on the first surface of the substrate, and a coating of a pressure sensitive adhesive (40) is positioned on the second surface (32) of the web. The series of labels are wound or stacked …
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 May 9, 1996 and granted September 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2018.
- 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.