Method and apparatus for separating material
CA 2769724 C · Owner: Exportech Company, Inc. · Inventors: Jamison, Russell E.; Oder, Robin R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for separating particles composed of a mixture of particles with differing physical and chemical characteristics comprising: a comminutor for reducing the size of the particles; a removal mechanism for removing particles between the feed and the comminutor; a removal mechanism for removing particles from the comminutor to a size classification apparatus; a mechanism for returning the oversized particles back to the comminutor or discharging them to a reject stream; and a magnetic and electric mechanism for separating the particles. A method for separating includes: reducing the size of the particles; removing the particles from comminution; providing particles to a separation …
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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 February 22, 2001 and granted September 30, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2023.
- 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.