A magnetic filtration system
CA 2330107 C · Owner: Marlowe, John · Inventors: Marlowe, John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnetic filtration system includes one or a plurality of collection units (1) comprising a magnet (4) disposed between a pair of plates (2 3), one , plate being magnetised North the other, South. The plates are provided with facing apertures and facing pole pieces so that particles entering the recesses are both repelled from the apertures and attracted towards and retained in collecting regions between exposed facing plate portions.
Read the whole patent
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 10, 1999 and granted January 28, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2021.
- 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.