Matted release coat for self-wound thermal printable facestock
CA 2230495 C · Owner: Media Solutions, Inc. · Inventors: Wittig, James T. Jr.; Mitchell, Chauncey T. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A direct thermal printable facestock (11) has an adhesive-coated back surface (18) and a release coat (24) applied over a layer of thermal imaging material (16) on a front surface (14) so the facestock (11) can be wound and unwound without using a separate release liner. The release coat (24) is composed of two release agents (26 and 28). One of the release agents (26) is a solid such as tetrafluoroethylene ground into specifically sized particles and the other , release agent (28) is a curable liquid such as silicone within which the particles of the solid release agent (26) are embedded for mechanically cleaning a thermal print head (48).
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 August 22, 1996 and granted January 15, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 22, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 22, 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.