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Expired Canadian patentCanada

Data cable for mechanically dynamic environments

CA 2589546 C · Owner: Clark, William T. · Inventors: Clark, William T.

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 multi-pair cable including a plurality of twisted pairs of insulated conductors, each having a closing lay length (twist lay length measured after the twisted pairs are cabled together with a particular cable lay) of less than about 0.6 inches. The plurality of twisted pairs are twisted together with a cable lay of greater than about three inches to form the cable. In some examples, the multi-pair cable may further comprise a separator disposed between the first and second twisted pairs. In another example a ratio , between a longest closing lay length and a shortest closing lay length in the cable is less than 1.65 inches. In another example the cable further includes , at least …

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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 January 24, 2006 and granted June 26, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 24, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 24, 2006
GrantedJune 26, 2012
Term endedJanuary 24, 2026
Patent numberCA 2589546 C
Classification (IPC)H01B11/04

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 24, 2006Patent grantedJune 26, 2012Term endedJan 24, 2026

Sources & verification

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