Fault management system for a telecommunications network
CA 2236786 C · Owner: Chaskell, Andrew David · Inventors: Keeble, Peter John; Chaskell, Andrew David; Bailey, Robert Derek
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is described a method of operating a fault management system for an access network which forms part of a public telecommunications network. In the access network, terminating lines in the form of pairs of copper wires extend from a local switch (10) through a series of nodes to terminal equipment provided for user of the network. The fault management system includes a test head (104) and an access network management system (102). Each night the test , head (104) performs a series of test on each of the terminating lines. The results of the test are transmitted to the access network management (102). The test results are then converted into circuit scores each of which is , …
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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 November 13, 1996 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.