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Expired Canadian patentCanada

End fed liquid heat exchanger for an electronic component

CA 1320260 C · Owner: Nelson, Richard D. · Inventors: Gupta, Omkarnath R.; Nelson, Richard D.

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

Abstract of the Disclosure, A body having a bottom and first and second ends and a cavity therein. A plurality of substantially parallel spaced fins are positioned in the cavity. A liquid inlet is centrally positioned in the first end of the body and a liquid outlet is centrally positioned in the second end of the body where flowing cooling liquid between the fins from the first end to the second end with higher fluid flow between the fins in the center for preferentially cooling the center of the heat exchanger. A cross-sectional area of the liquid path in the body minimize pressure drops and avoids abrupt direction changes and cross-sectional changes. The width height, and spacing of 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 13, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 13, 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.
FiledJuly 13, 1989
GrantedJuly 13, 1993
Term endedJuly 13, 2010
Patent numberCA 1320260 C
Classification (IPC)H01L23/47

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJuly 13, 1989Patent grantedJuly 13, 1993Term endedJuly 13, 2010

Sources & verification

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