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Expired Canadian patentCanada

Solid state capacitor obtained from niobium suboxide powder

CA 2609237 C · Owner: Mccracken, Colin · Inventors: Schnitter, Christoph; Brumm, Holger; Mccracken, Colin

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

Disclosed is a capacitor manufactured of niobium suboxide powder with higher break down voltage, higher temperature of operation and elongated lifetime. It is doped with nitrogen which is at least partly present in the form homogeneously distributed, x-ray detectable Nb2N-crystal domains.

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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 June 1, 2006 and granted March 31, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 1, 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.
FiledJune 1, 2006
GrantedMarch 31, 2015
Term endedJune 1, 2026
Patent numberCA 2609237 C
Classification (IPC)H01G9/05 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 1, 2006Patent grantedMarch 31, 2015Term endedJune 1, 2026

Sources & verification

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