Method and apparatus for detecting counterfeit documents
CA 2100477 A1 · Owner: Lamirande, Gerry · Inventors: Lamirande, Gerry; Hiotis, Andre; Yordanov, Dimiter Ivanov
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is described for detecting counterfeit or forged documents where the genuine documents contain matter printed in relief by a security printing process such as intaglio. The method comprises storing data representing a characteristic relief profile of matter printed by said process, scanning a specimen document to generate data representing a relief profile of the printed matter thereon, comparing the generated data with the stored data, and determining the validity of the specimen document on the basis of said comparison.
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 July 14, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2015.
- 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.