Patent Yard Sign in
Expired Canadian patentCanada

Multiple-injection molding using single-injection machines

CA 2115516 C · Owner: Ats Automation Tooling Systems Inc. · Inventors: Woerner, Klaus D.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A molding apparatus utilizes two conventional single-injection molding machines and a rotatable disk positioned between those machines. The disk has four workstations a, first one and a second one opposite respective molding machines, and a third one at which molded items are removed. The molding apparatus has the advantages of lower cost and greater flexibility over double-injection molding machines.

Read the whole patent

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 February 11, 1994 and granted April 28, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 11, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 11, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 11, 1994
GrantedApril 28, 1998
Term endedFebruary 11, 2014
Patent numberCA 2115516 C
Classification (IPC)B29C45/13 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 11, 1994Patent grantedApril 28, 1998Term endedFeb 11, 2014

Sources & verification

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