Lottery ticket with hidden conductive ink security means
CA 2293993 A1 · Owner: Borowski, Joseph Carl Jr. · Inventors: Borowski, Joseph Carl Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a scratch-off type lottery ticket in which a, layer comprised of a non-conductive ink region and a conductive ink region are printed, below an opaque scratch-off layer. The conductive ink region is detectable through the, opaque layer by conventional lottery ticket authentication/validation machines.
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 January 7, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2022.
- 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.