Patent Yard Sign in
Expired Canadian patentCanada

Method and system for authorizing a transaction using a dynamic authorization code

CA 2577333 C · Owner: Wankmueller, John · Inventors: Wankmueller, John

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A method and apparatus for conducting a secure transaction involving generation of a dynamic authentication code on a mobile device based on , secret data which does not identify an account. The authentication code and financial account identifying information are transmitted to a validating entity, which shares information about the secret data to authorize the , transaction.

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 August 18, 2005 and granted May 17, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 18, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 18, 2005
GrantedMay 17, 2016
Term endedAugust 18, 2025
Patent numberCA 2577333 C
Classification (IPC)G06Q20/40 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 18, 2005Patent grantedMay 17, 2016Term endedAug 18, 2025

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.