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Expired Canadian patentCanada

A highly scalable modular optical amplifier based subsystem

CA 2369754 C · Owner: Solheim, Alan G. · Inventors: May, Gregory D.; Berg, Loren S.; St-Laurent, Stephane

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Abstract From the Canadian patent

A modular bidirectional optical amplification system includes a multiwavelength dual amplifier building block a multiwavelength , unidirectional booster amplifier BB a unidirectional and a bidirectional , Optical Service Channel (OSC) BB an Intelligent Optical Terminal Accessway (IOTA) module, and an interleaved filter BB. The dual amplifier BB is available in a C-band version, an E-band version and a hybrid version and , provides unidirectional or bidirectional multichannel amplification. The booster amplifier is available in a C-band version an E-band version and in a , booster plus variant; one for the C-band and one for E-band. The unidirectional and bidirectional OSC BBs provide a …

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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 February 10, 2000 and granted August 16, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 10, 2000
GrantedAugust 16, 2011
Term endedFebruary 10, 2020
Patent numberCA 2369754 C
Classification (IPC)H04J14/02

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedFeb 10, 2000Patent grantedAug 16, 2011Term endedFeb 10, 2020

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