Permanent magnet ion trap and mass spectrometer using such a magnet
CA 2475352 C · Owner: Universite Paris-Sud · Inventors: Lemaire, Joel; Bellec, Gerard; Heninger, Michel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a vacuum ion trap comprising a sealed processing space (4) and a permanent magnet (30) which defines a cavity (32) and creates a directed magnetic field (B) in said cavity (32). The sealed space (4) is arranged in the cavity (32) and houses a confinement cell comprising at least two trapping electrodes which are located parallel to each other and perpendicular to the directed magnetic field (B) and are connected to a voltage generator (12). The inventive ion trap comprises at least one permanent magnet (30) which is shaped as a hollow cylinder and structured like a Halbach cylinder so as to create a permanent magnetic field (B) that lies perpendicular to the longitudinal axis …
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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 January 7, 2003 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 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.
Timeline
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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.