User verification method and user verification system
CA 2759020 C · Owner: Passlogy Co. Ltd. · Inventors: Ogawa, Hideharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a user verification method and a user verification system in which a password derivation pattern for each user is pre-registered into a verification server and when a user is to use the system, the verification server generates a presented pattern and presents this to the user the user inputs a password corresponding to the user's own password derivation pattern for the presented pattern the verification server performs verification of the inputted password based on the presented pattern and the user's own password derivation pattern that was registered and a verification result is then notified to the usage target system.
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 February 13, 2003 and granted May 17, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2025.
- 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.