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Expired Canadian patentCanada

Cross web for data grade cables

CA 2277655 C · Owner: Blouin, Denis · Inventors: Walling, Jorg-Hein; Blouin, Denis; Cornibert, Jacques

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

A cross web core in a high performance data cable maintains geometric stability between plural twisted pair transmission media and between each twisted pair and the cable jacket. The cross web core may further isolate twisted pairs from each other by including conductive or magnetically permeable materials. By so doing loss, impedance and crosstalk performance are improved.

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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 14, 1999 and granted September 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 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.
FiledJuly 14, 1999
GrantedSeptember 25, 2001
Term endedJuly 14, 2019
Patent numberCA 2277655 C
Classification (IPC)H01B11/06

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 14, 1999Patent grantedSep 25, 2001Term endedJuly 14, 2019

Sources & verification

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