Radio communication system based on digital localisation points
CA 2071996 C · Owner: Forer, Josef · Inventors: Forer, Josef; Lechner, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cordless network terminating units (CNTn) with a remote power-feeding device are connected via U interfaces (U) to a radiocommunication network with digital local exchanges (DIV-O). The cordless network terminating unit (CNTn) is associated with mobile sections (MT1-MT80). The cordless network terminating units (CNTn) are connected via digital subscriber line modules (SLMD) and digital subscriber line units (DLU) via a packet switching network (Datex-P) to the data processing system (SP) of a service provider. When a connection is being set up the authorization of the subscriber is directly checked with a database as "authentication" by the service provider. The data transmission occurs via …
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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 December 19, 1990 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 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.