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Expired Canadian patentCanada

Extrusion puller with stripper finger

CA 2018420 C · Owner: Visser, James T. · Inventors: Visser, James T.

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

An extrusion pulling apparatus including an extrusion run-out table and an extrusion pulley which is mounted for reciprocal movement along the run-out table. The extrusion pulley has an upper jaw mounted for vertical reciprocal movement between clamping and release positions on a support frame and a lower jaw mounted for reciprocal lateral movement between clamping and release positions also on the support frame. the lower jaw is also mounted for vertical movement with respect to the support frame. A stripper finger is mounted on the pulley adjacent the upper and lower jaws when the jaws are in the clamping position and is movable laterally to push extrusions toward a cooling table when the …

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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 June 6, 1990 and granted February 29, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 6, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 6, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 6, 1990
GrantedFebruary 29, 2000
Term endedJune 6, 2010
Patent numberCA 2018420 C
Classification (IPC)B21C29/00 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 6, 1990Patent grantedFeb 29, 2000Term endedJune 6, 2010

Sources & verification

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