Flexible customer controlled telecommunications handling
CA 2174364 C · Owner: At&T Ipm Corp. · Inventors: Otto, Mary Rita; Gerber, Eugene; Senneke, Wayne Alan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A central office controlled private branch exchange (PBX) is enhanced to provide more flexible services through the addition of new call vectors for controlling call processing. These new call vectors can access stored customer data to customize the treatment of incoming calls to meet the demands of individual customers. Advantageously, a broad class of new services for such systems is made available through the use of such new call vectors.
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 17, 1996 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 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.