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Expired Canadian patentCanada

Extendable electrical junction assembly

CA 2040567 C · Owner: Byrne, Norman R. · Inventors: Byrne, Norman R.

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

In an office environment using movable wall panels electrical junction assemblies including conduits of adjustable length are disposed in raceways near the lower edge of the panels. One embodiment of an adjustable length electrical junction assembly comprises a telescoping conduit to accommodate wall panels of different dimensions and to facilitate the placement of electrical outlets at appropriate locations. One type of telescoping conduit comprises two overlapping conduit sections of generally rectangular cross section and forming an inner spatial area for retaining excess wiring in a safe position. Another type of telescoping conduit comprises a conduit section of generally rectangular …

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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 April 16, 1991 and granted November 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 16, 1991
GrantedNovember 6, 2001
Term endedApril 16, 2011
Patent numberCA 2040567 C
Classification (IPC)H02G3/04 +1 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedApril 16, 1991Patent grantedNov 6, 2001Term endedApril 16, 2011

Sources & verification

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