A mixing apparatus
CA 2286686 A1 · Owner: Brown, Christopher John · Inventors: Brown, Christopher John
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the mixing of materials by means of the combination of sheardispersion and/or extensional-dispersion and distributive mixing actions in , which the mixing occurs in one or more stages within the mixer on material that is essentially propelled through such stages by pumping actions provided within the mixer itself.
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 April 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 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.