Protected image, and process for the production thereof
CA 2122564 C · Owner: Gaudiana, Russell A. · Inventors: Schild, Howard G.; Minns, Richard A.; Gaudiana, Russell A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A binary image comprising a plurality of first areas at which a porous, or particulate image-forming substance is adhered to a substrate and a , plurality of, second areas, at which the substrate is free from the image-forming substance is, protected by laminating thereto a laminating sheet comprising a durable layer and a, support layer with the durable layer facing the image so that the durable , layer adheres, to both the first and second areas of the image. The support layer is then displaced, away from the image such that the durable layer remains attached to the image. The, durable layer is substantially transparent and comprises a polymeric organic material, having incorporated …
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 April 29, 1994 and granted June 18, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2016.
- 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.