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Expired Canadian patentCanada

Termination for an electrical resistance heating element

CA 1089524 A · Owner: Scm Corporation · Inventors: Eaton, John L. Jr.

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

An electrical resistance heating element comprises a resistance heating member sheathed in an open-ended insulating tubular case. A respective unitary hook-shaped termination is fixed to each end of the resistance member and engages a peripheral edge at the respective open end of the case. Spring-loaded cup-shaped connection members of a household appliance serve to provide connections to and support for the element. The termination is simple and results in reduced heat generation in the termination and reduced heat conduction to the connection members.

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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 November 11, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 11, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 17, 1977
GrantedNovember 11, 1980
Term endedNovember 11, 1997
Patent numberCA 1089524 A
Classification (IPC)H05B3/08 +1 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedAug 17, 1977Patent grantedNov 11, 1980Term endedNov 11, 1997

Sources & verification

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