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Expired Canadian patentCanada

System for restoration of communications networks

CA 2094738 C · Owner: Arslan, Ahmet Vecdet · Inventors: Mcdonald, David Ellis; Bobeck, James D.; Arslan, Ahmet Vecdet

CIPO record

Overview

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

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Abstract From the Canadian patent

Difficulties with prior disrupted communications restoration systems are overcome by employing for each node of a communications network a restoration processor in which predetermined functions of the restoration process are managed by respective ones of a plurality of manager modules. The manager modules are arranged to be directly interconnected only with a so-called restoration manager that coordinates the operations of the modules and provides for their interconnectionneeds. In a preferred embodiment four manager modules, a) a user interface manager module, b) a digital cross-connect system (DCS) manager module c) a, distributed communications manager module and d) a core algorithm …

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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 April 23, 1993 and granted June 17, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 23, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 23, 1993
GrantedJune 17, 1997
Term endedApril 23, 2013
Patent numberCA 2094738 C
Classification (IPC)H04Q3/42 +1 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedApril 23, 1993Patent grantedJune 17, 1997Term endedApril 23, 2013

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