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Expired Canadian patentCanada

Electric or optical cable manufacture

CA 2034231 C · Owner: Phillips Cables Limited · Inventors: Gemert, Rudolf

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 kit of parts for assembling an elongate former suitable for transversely folding a longitudinally advancing tape around an advancing cable core comprises a primary former having a conically-shaped channel therethrough, a plurality of separately formed nose cones each having a conically-shaped bore the, cross-sectional size of the bore of each nose cone at its downstream end differing from that of each of the other nose cones, and means for detachably securing any nose cone to the downstream end of the primary former. Each nose cone has a length substantially less than the primary former and, as a consequence, each nose cone is readily formed from a transversely folded strip of sheet metal.

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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

  • Filed January 15, 1991 and granted December 10, 1996. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 15, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2013.
  • 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 15, 1991
GrantedDecember 10, 1996
Term endedJanuary 15, 2011
Patent numberCA 2034231 C
Classification (IPC)G02B6/04 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedJan 15, 1991Patent grantedDec 10, 1996Term endedJan 15, 2011

Sources & verification

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