Cellular radiotelephone system with remotely programmed mobile stations
CA 2182598 C · Owner: Zicker, Robert G. · Inventors: Zicker, Robert G.; Dion, John K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a cellular radiotelephone system which includes mobile stations which may be remotely programmed from a customer activation system to effect, activation and other programming needs. Mobile stations are manufactured in a blank form, that causes them to operate only in an inactive state. During activation information, describing the mobile station's electronic serial number (ESN) is collected along with area, of use information. A mobile identification number (MIN) is assigned in response to the, area of use information. A page message is directed to the mobile station operating in its, inactive state, but the page message references the ESN of the mobile station. …
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 January 31, 1995 and granted August 26, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 31, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 31, 2017.
- 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.