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Expired Canadian patentCanada

Device for short-circuiting of power semiconductor modules

CA 2643110 C · Owner: Holweg, Johann · Inventors: Dorn, Joerg; Dommaschk, Mike; Holweg, Johann

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

In order to provide an apparatus having power semiconductor modules which are connected to one another via connection means so as to form a series circuit wherein a short-circuiting device (1) for short-circuiting the respective power semiconductor module is assigned to each power semiconductor module which apparatus has a reliable and at the same time cost-effective short-circuiting device the invention proposes that the short-circuiting device is a pyrotechnical/mechanical element (1) which has a detonation charge and a tripping means (9) which can be displaced by means of the detonation charge.

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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 23, 2006 and granted September 16, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 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.
FiledFebruary 23, 2006
GrantedSeptember 16, 2014
Term endedFebruary 23, 2026
Patent numberCA 2643110 C
Classification (IPC)H01H39/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedFeb 23, 2006Patent grantedSep 16, 2014Term endedFeb 23, 2026

Sources & verification

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