Network-based determination of cost-effective access
CA 2236184 C · Owner: Tta Wireless Transfer Co. Llc · Inventors: Gilboy, Christopher P.; Bauer, Thomas M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method to access an information or electronic service uses a single access telephone number. The telephone number is used to access a particular service provider no matter where the subscriber is located and may, be, for example, 950-DATA, 1-800-ATT-DATA or 1-500-EASY-DATA. The system and method are particularly well suited to internet access through internet service providers (ISPs).
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 April 28, 1998 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 28, 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.