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Expired Canadian patentCanada

Fiber optic cable

CA 1255915 A · Owner: Giroux, D. William · Inventors: Giroux, D. William

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A mechanical figure eighting apparatus is disclosed which permits a fiber optic cable to be deposited on the ground in a random or figure eight configuration. Fiber optic cable is passed over a rotating drive wheel and is held in frictional engagement with the peripheral rim portion of the drive wheel by a pressure wheel mounted thereover. The fiber optic cable is passed or pushed outwardly through a tubular member extending outwardly from the drive wheel. The fiber optic cable is deposited on the ground in a random fashion or figure eight fashion as it is discharged from the tubular member.

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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 June 20, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 20, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 1986
GrantedJune 20, 1989
Term endedJune 20, 2006
Patent numberCA 1255915 A
Classification (IPC)G02B6/44 +2 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJuly 25, 1986Patent grantedJune 20, 1989Term endedJune 20, 2006

Sources & verification

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