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Expired Canadian patentCanada

Apparatus for relieving strain on electrical lead

CA 1323923 C · Owner: Tinley, Raymond K. · Inventors: Tinley, Raymond 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 relates to a structure for providing strain relief for electrical leads from transformers, and particularly mall transformers and similar electrical devices. The structure includes a boss extending from a base member having a recess therein and a drum portion with a convex surface for extending into said recess and engaging a lead passing therebetween to hold said lead in place. The support structure in addition to, holding said drum portion also supports the transformer, therein.

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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 2, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 1989
GrantedNovember 2, 1993
Term endedNovember 2, 2010
Patent numberCA 1323923 C
Classification (IPC)H01F27/02

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedSep 29, 1989Patent grantedNov 2, 1993Term endedNov 2, 2010

Sources & verification

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