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Expired Canadian patentCanada

Flexible conductor core for superconducting power cable and manufacturing process thereof

CA 2371075 C · Owner: Gonzalez, Parada Adrian · Inventors: Gonzalez, Parada Adrian; Perez, Sanchez Alfonso; Nieto, Sanchez Jose Luis

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 flexible conductor core for superconducting power cable characterized by a central tubular element on which the superconducting tapes are placed in the shape of a spiral or helix, in at least two layers with a calculated angle of lay length being one of the sections of the layers of the superconducting tapes laid in a direction opposite to the other section wherein the laying length of all the layers varies from a maximum P max1 (1000 cm) and P max2 (1000 cm) in the intermediate layers to a P min1 (2 cm) and P min2 (2 cm) in the external layers while the laying angle of the tapes of all the layers varies from .alpha.max1 (45°) to .alpha.min1 (0°).

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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 8, 2002 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2024.
  • 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 8, 2002
GrantedOctober 23, 2012
Term endedFebruary 8, 2022
Patent numberCA 2371075 C
Classification (IPC)H01B12/06 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 8, 2002Patent grantedOct 23, 2012Term endedFeb 8, 2022

Sources & verification

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