Device and method for removing magnetic or magnetisable particles from a liquid
CA 2531399 C · Owner: A Brassard, Lothar · Inventors: A Brassard, Lothar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a device (1) which is used to separate magnetic or magnetizable particles from a liquid by using a magnetic field. Said device comprises two limbs (2 3) , which are made of a soft-magnetic material. An air gap (12) is provided between be two poles (4, 5) of the limbs. Said air gap can receive a container or a plurality of containers (9, 10). A head piece (8) is arranged in a fixed or detachable manner on one of the two poles (4). A magnetizable bar or a plurality of magnetizable bars (7) is/are disposed in a fixed or movable manner on said head piece in the vertical , direction. A permanent magnet (15) or a group of at least two permanent magnets is/are …
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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 July 5, 2004 and granted January 31, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 5, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 5, 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.