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Expired Canadian patentCanada

Aerial cable with closure drain and vent and method of forming same

CA 1293540 C · Owner: Dienes, Zoltan B. · Inventors: Dienes, Zoltan B.

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

A method and apparatus for closing an exposed area of aerial cable is described. A foraminous barrier is placed around the cable adjacent the exposed area. A cover is placed thereover. The foraminous barrier permits water to pass through the cable without accumulating at the exposed area. However, debris, dirt, and other contaminants are prevented from entering the exposed area.

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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 December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 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.
FiledJanuary 20, 1988
GrantedDecember 24, 1991
Term endedDecember 24, 2008
Patent numberCA 1293540 C
Classification (IPC)H02G1/02 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedJan 20, 1988Patent grantedDec 24, 1991Term endedDec 24, 2008

Sources & verification

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