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Canadian application, no grantCanada

Body heat power generator

CA 2230498 A1 · Owner: Wong, George S. K. · Inventors: Wong, George S. K.

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

The invention disclosed relates to a method and apparatus for generating electrical power using animal body heat as the sole energy source. The apparatus includes a plurality of thermocouples connected in series and means for maintaining a temperature differential between the hot and cold junctions of the thermocouples whereby body heat energy received by, the hot junction is converted to electrical power. The apparatus can be used to replace or supplement the electrical power provided by a low-voltage battery to drive a microelectronic device.

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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 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2020.
  • 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 25, 1998
GrantedNo grant recorded
Term endedFebruary 25, 2018
Patent numberCA 2230498 A1
Classification (IPC)H02N11/00

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 25, 1998Term endedFeb 25, 2018

Sources & verification

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