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Canadian application, no grantCanada

Switch matrix among tributaries of a telecommunication network and managing method thereof

CA 2275004 A1 · Owner: Colizzi, Ernesto · Inventors: Colizzi, Ernesto; Lovadina, Marco

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A switch matrix among tributaries of a telecommunication network operating on flows of data which are arranged according to SDH protocol said switch matrix comprising a set of parallel branches each of said, branches comprising at least a space stage able to select and pack from the input data flow a subset of data to be exchanged a second time stage, able to store the data subset to be exchanged and comprising a random access memory device associated with a write memory and a read memory, said write memory and read memory being driven by a microprocessor and a master counter. The invention is characterized in that the read memory and write memory of each random access memory device are …

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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 June 15, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 15, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 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.
FiledJune 15, 1999
GrantedNo grant recorded
Term endedJune 15, 2019
Patent numberCA 2275004 A1
Classification (IPC)H04L12/54 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJune 15, 1999Term endedJune 15, 2019

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.