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Expired Canadian patentCanada

Temperature control arrangement for an electrical heating appliance

CA 1160274 A · Owner: Pifco Limited · Inventors: Wood, Paul A. P.

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

A temperature control apparatus for an electrical appliance comprises means for the attachment of the arrangement to the appliance and for the connection of the arrangement to an electricity supply whereby the appliance is supplied with electricity via the arrangement. A thermostat arrangement is provided in the apparatus and comprises a switch operable by a heat sensitive actuator. Heat transfer means are also provided whereby when the apparatus is connected to said appliance transfer of neat can take place from the appliance to the actuator so that, in use on, attainment of a predetermined temperature the actuator acts to operate the switch and affect the supply of electricity received by …

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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 January 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 31, 1981
GrantedJanuary 10, 1984
Term endedJanuary 10, 2001
Patent numberCA 1160274 A
Classification (IPC)A47J27/21 +2 more

Timeline

Timeline From CIPO dates

1982198419861988199019921994199619982000Application filedMarch 31, 1981Patent grantedJan 10, 1984Term endedJan 10, 2001

Sources & verification

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