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Expired Canadian patentCanada

Distributing frame for telecommunications circuits

CA 1287912 C · Owner: Mickelson, Nils P. · Inventors: Mickelson, Nils P.; Macfarlane, Jerauld C.

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 present invention involves a modular distributing frame assembly for distributing telephone circuits. It includes a central office bay member which has a generally vertical hollow member with forward and rear surfaces. The forward surface has a plurality of alternating terminal blocks and interstices. Each terminal block communicates with the rear surface and provides appearances for office cables. The rear surface defines a vertical opening adapted to receive the office cables. The frame also includes an outside plant bay member with a generally vertical hollow member with forward and rear surfaces. The forward surface has a plurality of alternate terminal blocks and interstices. Each …

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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 20, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2008.
  • 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 10, 1987
GrantedAugust 20, 1991
Term endedAugust 20, 2008
Patent numberCA 1287912 C
Classification (IPC)H04Q1/14 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedSep 10, 1987Patent grantedAug 20, 1991Term endedAug 20, 2008

Sources & verification

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