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Expired Canadian patentCanada

Radiator apparatus

CA 2765417 C · Owner: Worldbest Corporation · Inventors: Chan, Kam Ching Paul

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 radiator apparatus for concentrating or dispersing energy is disclosed. In one embodiment the radiator includes a thermal conductive layer a radiation layer, and a thermal insulation layer. The radiation layer is powered by an energy source and includes at least one radiation element embedded in at least a portion of the thermal conductive layer. The thermal insulation layer faces the thermal conductive layer. In another embodiment the radiator includes a generally helical dome-shaped radiation member powered by an energy source and a generally dome-shaped reflection member including a reflective surface facing the radiation member. In yet another embodiment the radiator includes a …

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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 5, 2004 and granted December 20, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 2026.
  • 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 5, 2004
GrantedDecember 20, 2016
Term endedFebruary 5, 2024
Patent numberCA 2765417 C
Classification (IPC)B64G1/40 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedFeb 5, 2004Patent grantedDec 20, 2016Term endedFeb 5, 2024

Sources & verification

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