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Expired Canadian patentCanada

System for removing liquid from slurries of liquid and particulate material

CA 1316119 C · Owner: General Signal Corporation · Inventors: Homer, John C.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract, In order to separate liquids from slurries containing particulate material, and particularly from slurries of water and spent ion exchange materials which are used for water conditioning in the operation of nuclear power plants and must be disposed of without any significant volume of free standing water therein a, vessel is provided which is filled with the slurry. The bottom of the vessel is conical and defines a region for the collection of water which passes thereto radially through a structure which filters the water and supports a bed of the particulate material thereon. A discharge tube extends longitudinally of the vessel into the region. A level sensor is disposed …

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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

  • Granted April 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 13, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 24, 1987
GrantedApril 13, 1993
Term endedApril 13, 2010
Patent numberCA 1316119 C
Classification (IPC)B01D36/00 +1 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedFeb 24, 1987Patent grantedApril 13, 1993Term endedApril 13, 2010

Sources & verification

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