Automatic call routing device
CA 1283230 C · Owner: Nixon, Toby L. · Inventors: Nixon, Toby L.; Nash, Randy D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Automatic Call Routing Device, Abstract A call routing device connects a telephone set and a modem to a common line so that incoming calls from a modem are routed to the modem and incoming cells from a telephone set are routed to the telephone set. The call routing device selectively places a ringing signal on an extension line to the telephone set and places a lingback signal on the telephone line for the calling party. The call routing device is responsive to a code from the calling party for placing a ringing signal on an extension line to the modem enabling a ring detector to answer connecting the modem to the line. The call routing device grants access to the first of the telephone set …
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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
- Granted April 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 16, 2008.
- 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.