Patent Yard Sign in
Expired Canadian patentCanada

High current conductors and high field magnets using anisotropic superconductors

CA 1331480 C · Owner: Davidson, Arthur · Inventors: Davidson, Arthur; Dinger, Timothy Rea; Worthington, Thomas Kimber

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Improved conductors and superconducting magnets are described utilizing superconducting materials exhibiting critical field anisotropy. This anisotropy is one in which the ability of the superconductor to stay in a superconducting state depends on the orientation of a magnetic field applied to the superconductor with respect to the direction of current flow in the superconductor. This anisotropy is utilized in the design of conductors and magnet windings comprising the superconductive material and specifically is directed to magnet windings in which the direction of high critical current through the superconductor is parallel to the magnetic field produced by current in these windings in …

Read the whole patent

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

  • Granted August 16, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 16, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 1988
GrantedAugust 16, 1994
Term endedAugust 16, 2011
Patent numberCA 1331480 C
Classification (IPC)H01L39/14 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedMay 6, 1988Patent grantedAug 16, 1994Term endedAug 16, 2011

Sources & verification

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