Selective paging system and paging receiver therefor
CA 1306290 C · Owner: Shimura, Kazuhiro · Inventors: Shimura, Kazuhiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Each pager in a system includes a receiver for receiving a transmission signal including an address and a message from a base station, a frame register for holding the number of a transmission frame assigned to the pager, a common frame register for holding the number of a transmission frame used in common by a plurality of pagers assigned with a transmission frame different from the transmission frame assigned to the pager address, registers for holding a specific address number of the pager and an address number common to a plurality of pagers and a controller. The controller switches on the receiver for a predetermined period of the transmission signal including that allotted to 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
- Granted August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
- 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.