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Canadian application, no grantCanada

Heatsink and heatsink device using the heatsink

CA 2408046 A1 · Owner: Lee, Sang-Cheol · Inventors: Lee, Sang-Cheol

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

A heatsink and a heatsink device using the heatsink are provided. The heatsink is formed of a plurality of thin heatsink plates and the individual heatsink , plates are bound to one another to be radially spread out thereby enlarging , the surface area of the heatsink and increasing its heat-dissipating efficiency. In the heatsink device, the heatsink is installed in an air duct and cool air is supplied into the air duct by a fan to thereby further , increase the heat-dissipating efficiency. The binding force of the heatsink to a heat-generating source can be elastically maintained which allows the , heatsink to remain bound to the heat-generating source even after an external impact. …

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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 February 28, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2024.
  • 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 28, 2002
GrantedNo grant recorded
Term endedFebruary 28, 2022
Patent numberCA 2408046 A1
Classification (IPC)H05K7/20 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedFeb 28, 2002Term endedFeb 28, 2022

Sources & verification

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