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Expired Canadian patentCanada

Superconductive cable and method for the production thereof

CA 2563501 C · Owner: Kovalenko, Alexander · Inventors: Kovalenko, Alexander; Fischer, Egbert; Khodghibagiyan, Hamlet

CIPO record

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Abstract From the Canadian patent

The invention relates to a supraconductive hollow cable and to a method for the production thereof. Said supraconductive hollow cable (1) comprises an outer tube (2) having a circular inner cross-section and a cylindrical inner wall (3). The inventive supraconductive hollow cable (1) also comprises a central cooling channel (4) having a polygonal or circular cross-section that is, however, smaller than the inner cross-section of the outer tube (2). Profiled supraconductive wires (5) are arranged between the outer tube (2) and the cooling channel (4). Said profiled supraconductive wires (5) have a crosssectional profile corresponding to that of a keystone such as those used to build …

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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, 2005 and granted June 25, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2025.
  • 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, 2005
GrantedJune 25, 2013
Term endedApril 25, 2025
Patent numberCA 2563501 C
Classification (IPC)H01B12/12 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 25, 2005Patent grantedJune 25, 2013Term endedApril 25, 2025

Sources & verification

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