Gas-liquid contact apparatus and method of making it
CA 1255583 A · Owner: Nutter, Dale E. · Inventors: Nutter, Dale E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A gas liquid contact apparatus having a grid formed of a plurality of spaced apart grid members which are connected together by a plurality of connector members. The grid has surfaces which are wettable by liquid flowing downwardly thereon and also has a plurality of vertical passages which permit the flow of ascending gases through the grid. Each of the grid members comprises an elongated upstanding web having upper and lower flanges which extend laterally from the upper and lower portions of the web each of the upper and, lower flanges being discontinuously formed of a plurality of flange segments which extend alternately in opposite lateral directions from the web. A particular feature …
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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 June 13, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 13, 2006.
- 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.