Security document containing encoded data block
CA 2288985 C · Owner: Mowry, William H. Jr. · Inventors: Mowry, William H. Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A security document (40, 60) is provided comprising human readable transaction data, a plurality of security image elements (72) a plurality of , complementary security image elements (78) and an encoded information block , (66) comprising a plurality of digital glyphs (68) printed thereon. The human readable transaction data printed on the top surface of the substrate forms a full tone image and includes an enhanced security data item. The security image elements (72) printed on the top surface of the substrate and the plurality of complementary security image elements (78) printed on the top surface of the substrate define a security image. The encoded information block (66) …
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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 June 9, 1998 and granted November 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2020.
- 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.