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Expired Canadian patentCanada

Apparatus for manufacturing seal component

CA 1315053 C · Owner: Skf Usa, Inc. · Inventors: Christiansen, Keith W.

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

A mold assembly for manufacturing fluid seals of the kind repeatedly operable through an operating cycle which includes the steps of receiving a seal casing having an axial annular skirt and a radial flange when said mold is open forming flash barriers while closing, completing closure and, opening for finished part removal. The mold assembly comprises a mold core and lower insert movable relative to a fixed mold part and relative to each other and in which one, such part supports and positions the casing during mold closure and wherein the other mold part includes a barrierforming surface as well as a portion of the cavity forming surface, such mold parts cooperating with other portions …

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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 March 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 30, 2010.
  • 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 10, 1989
GrantedMarch 30, 1993
Term endedMarch 30, 2010
Patent numberCA 1315053 C
Classification (IPC)B29C33/12 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 10, 1989Patent grantedMarch 30, 1993Term endedMarch 30, 2010

Sources & verification

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