Radio transceiver having fixed calling capacity
CA 2103662 A1 · Owner: Motorola, Inc. · Inventors: Bogusz, Anthony J.; Dorsey, Donald A.; Sroka, J. Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cellular phone (100) having a fixed calling capacity limiting use of phone to emergency situations. Two call sequences are stored in memory permitting telephonic communication with only the two fixed sites associated with the two call sequences. Telephonic communication must be effectuated with a first fixed site and, then terminated, prior to effectuation of telephonic communication with a second fixed site. Telephonic communication with a second fixed site is permitted during a predetermined limited time, period.
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 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 8, 2014.
- 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.