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Expired Canadian patentCanada

Highly insulated inductive data couplers

CA 2502547 C · Owner: Cern, Yehuda · Inventors: Cern, Yehuda

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

There is provided an inductive coupler for coupling a signal to a power line. The inductive coupler includes a magnetic core for placement about the power line, a coil wound around a portion of the magnetic core and a semiconducting, coating that encapsulates the core and contacts the power line. The signal is coupled to the coil.

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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 October 17, 2003 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 17, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 17, 2003
GrantedJanuary 17, 2012
Term endedOctober 17, 2023
Patent numberCA 2502547 C
Classification (IPC)H04B3/56 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 17, 2003Patent grantedJan 17, 2012Term endedOct 17, 2023

Sources & verification

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