Method and apparatus for blending solids or the like
CA 2075763 A1 · Owner: Lynn, James R. · Inventors: Fons, Gerrit; Lynn, James R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
32957CA, Abstract, Particulate materials are blended in a vessel provided with a single vertically extending mixing tube therein. The vessel comprises a downwardly converging frustoconically-shaped bottom wall which defines the lower region of the vessel. The mixing tube is provided with one or more longitudinally extending divider plate which divide the mixing tube into a plurality of longitudinally extending compartments. The mixing tube is provided with a plurality of openings which provide direct fluid flow communication with the interior of the vessel and the longitudinally extending compartments. The lower ends of the mixing tube and the compartments therein extend through the bottom …
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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 August 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 2014.
- 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.