Method and apparatus for delivering caller identification information and services
CA 2248252 C · Owner: Telcordia Technologies, Inc. · Inventors: Smyk, Darek Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A network for delivering caller identification information comprising one or , more telephone switches (1706) a database associating telephone numbers to names (1708), a telephone (1710) located at a remote user location a display , located at said remote user location and a caller identification adapter, separate from said display located at said remote user location, and connected to a telephone switch, said caller identification adapter including means for sending a calling party's name and telephone number to said display in response to a telephone call and means for sending a ring telephone instruction to said telephone (1710) in response to a telephone call.
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 June 19, 1996 and granted June 12, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 19, 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.