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Expired Canadian patentCanada

Apparatus and method for preparation of liquid/solid slurries

CA 2216045 C · Owner: Terralog Technologies Inc. · Inventors: Fundytus, Darcey D.; Bilak, Roman A.

CIPO record

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Abstract From the Canadian patent

An apparatus and method are disclosed for the continuous formation of slurry. The apparatus includes a hopper to hold particulate material; one or more transport/mixing assemblies that mix and transport the solid material and a carrier liquid; and a mixing/averaging tank that receives the solid/liquid mixture from the transport/mixing assembly and performs a final mixing and averaging of the mixture to achieve a desired slurry consistency. An auger inside the tank continuously mixes the slurry and has one or more outlet ports to continuously discharge the slurry. The auger may be bi-directional, to direct the slurry towards dual outlets on opposing ends of the tank. Preferably, a …

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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 September 19, 1997 and granted September 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 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.
FiledSeptember 19, 1997
GrantedSeptember 9, 2003
Term endedSeptember 19, 2017
Patent numberCA 2216045 C
Classification (IPC)B01F15/04 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedSep 19, 1997Patent grantedSep 9, 2003Term endedSep 19, 2017

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.