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Expired Canadian patentCanada

Reliable superconducting link for superconducting thin film components and a method for fabricating the contacts

CA 2045239 C · Owner: Neuromag Oy · Inventors: Simola, Juha Tapani Antero; Kajola, Matti Jaakko; Ahonen, Antti Ilmari

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 reliable superconducting contact for superconducting thin film components based, on soft superconducting materials and a method for making the contacts. The joint, according to this invention, consists of a thin bonding slab having its end longitudi-, nally cut so that double or multiple parallel joints can be made. In the method, a, wire blank is squeezed to a thin plate and then this plate is cut to slabs used in the, bonding. The ribbon-like character and the thinness of the bonding slab permit a, precise control of the bonding temperature and reduce the strain and bending forces, caused by thermal contraction, preventing the contact from peeling off while cool-, ing the …

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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 21, 1991 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2013.
  • 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 21, 1991
GrantedApril 9, 2002
Term endedJune 21, 2011
Patent numberCA 2045239 C
Classification (IPC)H01L39/06 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJune 21, 1991Patent grantedApril 9, 2002Term endedJune 21, 2011

Sources & verification

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