Switching system
CA 1187977 A · Owner: Deltavisie B.V. · Inventors: De Roo, Minno
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A switching system comprising an exchange(1) with n signal inputs(5) and m subscriber outputs(14) and switching means(6 7) in, the exchange for each subscriber for supplying a signal from one of the signal inputs through a signal separating circuit to the related subscriber output. Between each subscriber output and each subscriber terminal(11) there is a cable connection(2). Each subscriber has signal selecting means(13), which as the subscriber signal receiver(12) are connected to said subscriber terminal and by means of which selecting signals can be transmitted through the cable connection and through said signal separating circuit to a control unit in the exchange for controlling the …
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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
- Granted May 28, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 2002.
- 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.