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Expired Canadian patentCanada

Ground fault receptacle with circuit interrupting means

CA 1083650 A · Owner: Square D Company · Inventors: Legatti, Raymond H.; Draper, Charles W.

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

Abstract of the Disclosure An electric receptacle for trade size outlet boxes having a ground fault circuit interrupting mechanism incorporated therein. A receptacle housing includes contact jaws seated therein to receive the plug of a conductor leading to a load electronic components to detect a ground fault and grounded neutral condition on the load side of the receptacle plus a, coil and trip mechanism to open the receptacle circuit on occurrence of a ground fault or grounded neutral condition. The complete receptacle assembly is approximately the same depth as conventional household receptacles which do not have ground fault circuit interrupting means included therein. Means to …

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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 August 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 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.
FiledOctober 3, 1979
GrantedAugust 12, 1980
Term endedAugust 12, 1997
Patent numberCA 1083650 A
Classification (IPC)H01H73/00 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Application filedOct 3, 1979Patent grantedAug 12, 1980Term endedAug 12, 1997

Sources & verification

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