Hysteresis assessment for metal immunity
CA 2468327 C · Owner: Biosense Webster, Inc. · Inventors: Govari, Assaf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates generally to non-contact tracking of objects using a magnetic field and specifically to counteracting the effect of a moving magnetic field-responsive article in a magnetic field. Assessment apparatus comprising a set of one or more radiators which is adapted to generate an energy field at at least one fundamental frequency; a receiving sensor which is adapted to generate a first signal responsive to the energy field when an interfering article is at a first location relative to the receiving sensor and which is adapted to generate a second signal responsive to the energy field when the interfering article is at a second location relative to the receiving …
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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 May 25, 2004 and granted April 29, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 2026.
- 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.