Sorting apparatus
CA 2246984 A1 · Owner: De Beers Consolidated Mines Limited · Inventors: Kofler, Matthias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Sorting apparatus comprises a grate in which a plurality of elongate bars are supported by a frame, with adjacent bars defining an angle between one another, so that the grate defines apertures which in size from a first end to a second end of the grate. The grate is suspended above a set of hopper and caused to vibrate by means of a vibratory motor so that, particulate material deposited on the grate is classified by size.
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 September 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 2020.
- 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.