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Expired Canadian patentCanada

Injection die for injecting two components

CA 1331265 C · Owner: Sturm, Leo · Inventors: Sturm, Leo; Kuhberger, Friedrich; Ebenhofer, Karl

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

An injection molding die for an injection molding machine is capable of injecting a plurality of plastic components or one plastic component and a gas or liquid selectively or simultaneously. The molding die includes a die base with a die channel which slidably receives a sleeve element. An injection aperture in the die channel can be closed or opened by the sleeve element. A pin channel in the sleeve element receives a closing pin which is fixed to the die base. A passage opening in the sleeve element can be closed or opened by relative movement between the sleeve element and the closing pin. A lever arrangement extends laterally from the sleeve element for moving the sleeve element in 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

  • Granted August 9, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 9, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 18, 1989
GrantedAugust 9, 1994
Term endedAugust 9, 2011
Patent numberCA 1331265 C
Classification (IPC)B29C45/16 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 18, 1989Patent grantedAug 9, 1994Term endedAug 9, 2011

Sources & verification

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