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Expired Canadian patentCanada

Process and device for producing multi-wire power cables or lines provided with reversing lay

CA 1082435 A · Owner: Sutterlin, Klaus · Inventors: Froberg, Peter; Sutterlin, Klaus; Wannink, Alfred

CIPO record

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Abstract From the Canadian patent

A method of producing multiple-core power current cables or leads comprises laying cores continuously with reversing stroke to a bundle at a laying point and forming a common insulating coating by extrusion at or adjacent the laying point. Apparatus for performing the method includes a laying disc drivable in alternate rotational directions and an extruder having an extrusion head with a guide mandrel serving as a laying nipple. The extruder is spaced from the laying disc in the direction of movement of the cores.

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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 July 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 1977
GrantedJuly 29, 1980
Term endedJuly 29, 1997
Patent numberCA 1082435 A
Classification (IPC)H01R43/00 +2 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedMay 6, 1977Patent grantedJuly 29, 1980Term endedJuly 29, 1997

Sources & verification

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