Device for testing the operation of optical fiber communication networks
CA 2253701 A1 · Owner: Bianchi, Lucia · Inventors: Colizzi, Ernesto; Besati, Gianni; Bianchi, Lucia
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for testing the operation of communication networks specifically, MS-SPRING optical fiber communication networks which comprises traffic protection, means. According to the invention modulation and measurement elements (A BK, CHKR, CHKT) are provided, which elements can be driven by a processor (PC) to execute automatic test of the operation of traffic protection means (12) for one or more rings (1, 11) of the optical fiber communication network. (Fig.2)
Read the whole patent
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 4, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 4, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2020.
- 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.