System and method for managing multiple users with different privileges in an open metering system
CA 2193024 C · Owner: Riley, David W. · Inventors: Ryan, Frederick W. Jr.; Riley, David W.; Lee, David K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method of managing multiple users of an open metering system, wherein the users have different access privileges includes the steps of providing a user password system for vault access; programming the vault with a plurality of transition states operatively relating to the user password system; assigning vault functional access to each user password first entered into the user password system; and performing a requested vault function when an entered user password under which the request is made has been assigned vault functional access for the requested vault function. The vault is manufactured in a first state in which the user password system is not activated and the …
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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 December 16, 1996 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 16, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2018.
- 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.