Magnet system
CA 2052167 A1 · Owner: Unkelbach, Karl. Heinz · Inventors: Wasmuth, Hans Dieter; Unkelbach, Karl. Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a known magnet system in particular for, magnetic separators with homogeneously magnetized, circularly arranged magnetic blocks the directions of, magnetization of the magnetic blocks are aligned variably among one another and are established according to a predetermined mathematical formula. In this way a magnetic, field is created which is uniform across the entire range of the magnet system. However, the magnetic blocks are in this case of a trapezoidal shape cross-section and require special manufacturing because of the different directions of magnetization. The production and the assembly of these magnetic blocks are therefore relatively complicated and expensive. However, according …
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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 September 24, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 2013.
- 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.