Method of establishing communication between independent communication system
CA 2057911 A1 · Owner: Comroe, Richard A. · Inventors: Major, John E.; Comroe, Richard A.; Sobti, Arun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In one embodiment independent communication systems (101 and 102) are provided with additional receivers (112 and 113) that allow the systems to monitor one anothers' outbound control signalling channels. Secondary control signalling (204) can be interleaved with the primary control signalling (201) information on this communication resource, which secondary control signalling information is intended for reception and use by the monitoring system. In another embodiment, communication systems (301 and 302) having dedicated communication resources are provided with receivers (311 and 316) that monitor the communication resources of other communication systems. Communications between …
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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 April 19, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2012.
- 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.