Signalling method and conversion device for telecommunications networks
CA 2281041 A1 · Owner: Hirzel, Werner · Inventors: Hirzel, Werner; Joss, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A signalling method and conversion device for telecommunications networks, for example mobile networks such as GSM or UMTS networks wherein, at least certain subscribers can register in their home network or in a, telecommunications network having a roaming agreement with the operator of their home network, using a first subscriber identification from the number area of, their home operator, certain of these subscribers being assigned a second subscriber identification from the number area of a partner network operator with, which these subscribers can register in a visited network with which operator their, home network operator does not have a roaming agreement the signalling , …
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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 August 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 30, 2021.
- 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.