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Expired Canadian patentCanada

Electric line with bundle conductors associated to metal or dielectriccables incorporating optic fibres for telecommunication

CA 1290830 C · Owner: Gatti, Marco · Inventors: Gatti, Marco

CIPO record

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

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Abstract From the Canadian patent

Line for transmitting electric energy with bundle, conductors enclosing into the bundle a metal or dielectric cable incorporating optic fibres for telecommunication. The cable, in correspondence of each spacer of the bundle is, supported in a position placed on the vertical led through the barycenter of the bundle and at a distance from said barycenter included in a range of + 35% of the diameter of the bundle (i.e. the diameter of the circumference defined by the barycenters of the subconductors; + for positions above the barycenter, - for positions below the barycenter). The spacers are set at a mutual distance included between 30 m and 85 m. The optic fibres cable is clamped onto 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 October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.
FiledDecember 18, 1987
GrantedOctober 15, 1991
Term endedOctober 15, 2008
Patent numberCA 1290830 C
Classification (IPC)H02G7/12 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedDec 18, 1987Patent grantedOct 15, 1991Term endedOct 15, 2008

Sources & verification

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