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Expired Canadian patentCanada

Fiber optic operations center

CA 2211816 C · Owner: Parzygnat, William Joseph · Inventors: Pimpinella, Richard Joseph; Reagan, Randy Alan; Janus, Neal Anthony

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Disclosed is a fiber optic operations center intended for use in a central office which is responsible for the administration, monitoring, testing, and repair of a multiplicity of fiber optic cables entering the central office from subscribers. The operations center is housed in a bay which is arranged to protect fiber optic cables and route then to an optical switch which connects one or more selected cables to a test device which launches and receives optical signals. The test device is under the control of a system controller which has a variety of input and output means which enable craftpersons in the central office and in remote locations to access the operations center.

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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 July 30, 1997 and granted November 27, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 30, 1997
GrantedNovember 27, 2001
Term endedJuly 30, 2017
Patent numberCA 2211816 C
Classification (IPC)H04Q1/20 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 30, 1997Patent grantedNov 27, 2001Term endedJuly 30, 2017

Sources & verification

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