Mobile phone with internal accounting
CA 2211892 C · Owner: Tracfone Wireless, Inc. · Inventors: Mcgregor, Gregory M.; Mcgregor, Donald Scott
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mobile phone system (10) with a mobile phone having internal accounting (12) capabilities for real time call debiting to account for the billing parameters of a mobile phone unit (30) that is operated in a multi zone communication network with a complex rate structure, the mobile phone unit having an internal processor with accessible internal memory for storing the accounting program and call data for each call, the accounting program including an updatable rate table and a complex billing algorithm such as long distance calls, international calls, and charges for roaming per day and/or per minute where the account status of the mobile phone is calculated in real time for …
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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 January 18, 1996 and granted December 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 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.