Mobile radio systems
CA 2232006 C · Owner: Munday, Peter Robert · Inventors: Goetz, Ian; Gannon, Stephen Mark; Munday, Peter Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cellular radio system comprises radio base stations (A B, C), each having , an allocated number of radio channels. Each radio base station is connected to the rest of the network (BSC, MSC) by a branched network (5 7a, 7b, etc.). At , the branch point H an intermediate switch is provided for connecting channels in the trunk portion (5) to channels in the branches (7a 7b, etc.). The , capacity of the trunk link (5) is less than the total capacity of the base stations (and of their associated branch links (7a 7b, 7c)). At times when , one or more of the base stations (A B, C) have surplus capacity, that , capacity is disabled so that the capacity of the trunk link (5) is not exceeded. …
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 December 11, 1996 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2018.
- 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.