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Expired Canadian patentCanada

Air-conditioning unit with multi-position coil

CA 1081461 A · Owner: Westinghouse Electric Corporation · Inventors: Hine, Louis P. Jr.

CIPO record

Overview

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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 air-conditioning unit with a blower section and an adjacent refrigerant evaporator coil section is adapted to be disposed for airflow through the unit in an upflow, counterflow, or horizontal flow direction by arranging the evaporator coil, and a drip pan separable from both the coil and the coil section with the drip, pan located in any of the four interior corners which extend from front to rear of the unit. The coil has a frame assembly with members at the ends of the fins of the evaporator coil provided with openings for passing condensate into the drain pan, the arrangement being such that either end of the coil may be received within the drain pan. The arrangement also includes the …

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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 July 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 1997.
  • 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 24, 1978
GrantedJuly 15, 1980
Term endedJuly 15, 1997
Patent numberCA 1081461 A
Classification (IPC)F24F1/03 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJuly 24, 1978Patent grantedJuly 15, 1980Term endedJuly 15, 1997

Sources & verification

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