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Expired Canadian patentCanada

Production of cables with undulated tension relief elements

CA 1099877 A · Owner: Lynenwerk, G.M.B.H. & Co. Kg · Inventors: Ney, Robert

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

Abstract, In the production of electric cable in an extruder head having undulated tension relief elements embedded in the jacket the jacketing material and tension relief elements are introduced at a velocity greater than the cable core with such velocity, being subsequently decreased to provide a compressive force which forms the undulations.

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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 April 28, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 28, 1998.
  • 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 19, 1978
GrantedApril 28, 1981
Term endedApril 28, 1998
Patent numberCA 1099877 A
Classification (IPC)H01B13/24

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJan 19, 1978Patent grantedApril 28, 1981Term endedApril 28, 1998

Sources & verification

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