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Canadian application, no grantCanada

Wet scrubber apparatus and paint spraybooth in combination with wet scrubber apparatus

CA 2021060 A1 · Owner: Haden Schweitzer Corporation · Inventors: Johnson, Jeffrey C.; West, Kenneth J.; Slater, Andrew

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A wet scrubber is provided for use in combination with a work station in which airborne particulates are generated. The wet scrubber includes a generally horizontal partition which defines a lower boundary of the work station and a discharge structure depending from the partition. Means are provided for supplying a flow of liquid into the discharge structure and for supplying a flow of air carrying the particulate from the work station into and through the discharge structure. A scrubber chamber is also provided into which the discharge structure projects the chamber, including a receptacle for containing a pool of liquid. The discharge structure itself is constructed to include an …

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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 July 12, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 12, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 12, 1990
GrantedNo grant recorded
Term endedJuly 12, 2010
Patent numberCA 2021060 A1
Classification (IPC)B05B14/46 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJuly 12, 1990Term endedJuly 12, 2010

Sources & verification

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