Preparation of light-emitting, highly reflective and/or metallic-looking images on a substrate surface
CA 2403469 A1 · Owner: Nigam, Asutosh · Inventors: Nigam, Asutosh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention features processes and compositions for producing a metallic-looking image on a substrate having a reflective or luminescent surface. The process utilizes an opaque coating composition containing an opaque coating agent comprising a mixture of a polyacid and a polybase. When applied to a light-emitting, reflective or luminescent substrate the opaque , coating composition at least partially masks the light-emitting reflective or luminescent surface of the substrate, but becomes increasingly translucent or transparent when contacted with a recording liquid such as an ink revealing , the light-emitting, reflective or luminescent surface.
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 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.