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Expired Canadian patentCanada

Low silhouette cooling tower with trapezoidal fill

CA 1318239 C · Owner: Baltimore Aircoil Company, Inc. · Inventors: Garrish, Bryan F.

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

The vertical height requirement of a cooling tower is reduced by utilizing trapezoidal shaped fill sheets which are suspended generally in line with the entering air stream so as to form a wedge shaped plenum space beneath the lower sloped edges of the fill sheets.

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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 May 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 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 2, 1989
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318239 C
Classification (IPC)F28F25/08 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedFeb 2, 1989Patent grantedMay 25, 1993Term endedMay 25, 2010

Sources & verification

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