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Expired Canadian patentCanada

Leak testing and leak localization arrangement for leak testing and leak localization for flat roofs or the like

CA 2606466 C · Owner: Burger, Klaus · Inventors: Bruehl, Markus; Lorenz, Bernd; Burger, Klaus

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Abstract From the Canadian patent

In a leak testing and leak localization arrangement for leak testing and localization for flat roofs or the like which are sealed by at least one electrically insulating sealing web (6), at least one voltage source (12) is applied between an upper side of the sealing web and below an underside of the sealing web. The upper side of the sealing web is sampled by means of a measuring device (9) provided with two measurement sensors (10 11). In order to achieve reliable leak testing and precise leak localization with contact being made in an uncomplicated manner with the voltage source (12) web-, shaped electrically conductive material is arranged on the underside of the sealing web …

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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 April 25, 2006 and granted February 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 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.
FiledApril 25, 2006
GrantedFebruary 21, 2012
Term endedApril 25, 2026
Patent numberCA 2606466 C
Classification (IPC)G01M3/16

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 25, 2006Patent grantedFeb 21, 2012Term endedApril 25, 2026

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