Enhanced wide area audio response network
CA 2069009 C · Owner: Austin, Kevin Lee · Inventors: Austin, Kevin Lee; Richardson, Charles Thomson, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus and method for providing enhanced wide area audio response services including a central controller (40) connected through a public network (16) to a plurality of audio peripherals (20a, 20b) which are distributed over a wide area to receive and originate telephone calls to receive store and forward audio , signals, the central controller (40) providing error notification services to operator personnel providing utility grade service , to the audio peripherals (20a 20b), and utilizing, Dialed Number Identification Service (DNIS) methods for identifying various applications, such as voice messaging, audio text and remote information provider accessing:
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 September 26, 1991 and granted April 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2013.
- 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.