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Canadian application, no grantCanada

Thermally conductive interface materials and methods of using the same

CA 2073950 A1 · Owner: Chomerics, Inc. · Inventors: Jones, Peter; Liberty, James

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

A thermally conductive interface material formed of a polymeric binder and one or more thermally fillers is disclosed. One or both of the major surfaces of the interface material has a means for removing air from between that surface and the surface to which it is attached, such as a heat sinker an electronic component. Alternatively, the heat sink or component may have the air removal means instead of or in addition to the interface material. The air removal means may be a series of embossments, channels or grooves or throughholes. Preferably, the interface is a pressure sensitive acrylic adhesive material and more preferably it is in the form of a tape.

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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 15, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 15, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2014.
  • 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 15, 1992
GrantedNo grant recorded
Term endedJuly 15, 2012
Patent numberCA 2073950 A1
Classification (IPC)H01L23/36 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJuly 15, 1992Term endedJuly 15, 2012

Sources & verification

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