Continuous call forwarding to plural lines
CA 2108223 C · Owner: Mitel Corporation · Inventors: Pinard, Deborah L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a method of ringing a telephone subscriber comprised of (a) defining a hunt group of telephone lines for a particular telephone line associated with the subscriber (b), receiving a call to the telephone line from a calling party, (c) seizing and ringing a telephone line contained in the group as a result of receiving the call, (d) timing an interval of answering time (e) in, the event the telephone line is not answered within the interval, releasing and ceasing ringing the telephone line and ringing another telephone line listed in the hunt group, (f) repeating steps (d) and (e) until a ringing telephone line has been answered all telephone, lines in the …
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 October 12, 1993 and granted December 23, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2015.
- 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.