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Expired Canadian patentCanada

Indirect contact chiller air-precooler method and apparatus

CA 2127772 C · Owner: Baltimore Aircoil Company, Inc. · Inventors: Cates, Robert E.; Mccloskey, William D.; Smith, Glenn W.

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

An apparatus and method for cooling, air which apparatus includes an indirect evaporative cooler, an indirect contact chiller a rehear coil component, an , ice-thermal-storage component and an ice-manufacturing refrigeration chiller to provide alternative, air-flow paths and alternative component combinations. Alternative fluid-flow paths are, provided through electable combinations of the several components to effect the desired, lowering of air temperature relative humidity and air density in the cooled air.

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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 11, 1994 and granted November 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 11, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2016.
  • 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 11, 1994
GrantedNovember 23, 1999
Term endedJuly 11, 2014
Patent numberCA 2127772 C
Classification (IPC)F02C7/14 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJuly 11, 1994Patent grantedNov 23, 1999Term endedJuly 11, 2014

Sources & verification

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