Method of processing a mixture of solids and liquids
CA 2106291 A1 · Owner: Abel, Gunther · Inventors: Abel, Gunther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of processing a mixture of liquid and solid material comprises the steps of subjecting the mixture to a first screening to screen at least a portion of the solid material from the liquid subjecting the thus-screened liquid to a second screening to screen further solid material from the liquid collecting and aerating the liquidscreened by the first and second screenings and subjecting the thus-aerated liquid to a third screening to remove further solids from the liquid.
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 15, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 15, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 15, 2015.
- 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.