Cereal separation apparatus
CA 2200902 C · Owner: Katou, Akihiko · Inventors: Katou, Akihiko; Hisamitsu, Yasushi; Arishige, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cereal separation apparatus includes a frame, size grading mechanism mounted at an upper portion of the frame for grading particles according to a size of the particles, oscillation-type specific gravity grading mechanism mounted at a lower portion of the frame, air flow-producing mechanism for producing an air flow for effecting the specific gravity grading; and a feed passage for feeding the particles selected by, the size grading mechanism from the size grading, mechanism to the specific gravity grading mechanism. The size grading mechanism comprises a perforated hollow cylinder for grading the particles according to the particle size, and the cylinder is supported on the frame for …
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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 March 25, 1997 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 2019.
- 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.