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Expired Canadian patentCanada

Superconducting quantum interference device

CA 2829934 C · Owner: Commonwealth Scientific And Industrial Research Organisation · Inventors: Leslie, Keith; Tilbrook, David

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A superconducting magnetic field detection element (10) comprising at least one superconducting pick-up loop (12) formed on a common flexible substrate (11) wherein the common flexible substrate (11) is in a non-planar position such that the at least one superconducting pick-up loop (12) is operable to detect magnetic fields of differing orientation.

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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 August 7, 2003 and granted June 28, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 7, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 7, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 7, 2003
GrantedJune 28, 2016
Term endedAugust 7, 2023
Patent numberCA 2829934 C
Classification (IPC)G01R33/02

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 7, 2003Patent grantedJune 28, 2016Term endedAug 7, 2023

Sources & verification

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