Method and system for obtaining higher order gradiometer measurements with lower order gradiometer
CA 2223748 C · Owner: Haid, Gordon James · Inventors: Haid, Gordon James; Vrba, Jiri; Lee, Wai Meng Sixtus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system of obtaining magnetic measurements with a preselected order of sensor gradiometer which are substantially equivalent to those which would be obtained with a sensor gradiometer of a higher order. The system and method employs a reference system comprising a reference tensor gradiometer and appropriate components of a measured tensor are combined with the measurements obtained from the sensor gradiometer to obtain a magnetic measurement substantially equivalent to that which would have been measured by a higher order sensor gradiometer.
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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 7, 1996 and granted September 24, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 7, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 7, 2018.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.