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Expired Canadian patentCanada

Process and device for controlling the movements of an injection mould and a handling device

CA 2074940 C · Owner: Herbst, Richard · Inventors: Herbst, Richard

CIPO record

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

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Abstract From the Canadian patent

In order to control the opening and closing movement of an injection mould (1 3) and the feed and extraction movement of a handling device (7) for the removal of the moulding in a manner which is optimally concerted with no delay the opening, movement of the mould and/or the extraction movement of the handling device is detected in relation to position and speed; if the speed lies in a reference range, a release signal is generated which triggers the feed movement of the gripping device or the closing movement of the mould.

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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 February 5, 1991 and granted November 3, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 5, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 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.
FiledFebruary 5, 1991
GrantedNovember 3, 1998
Term endedFebruary 5, 2011
Patent numberCA 2074940 C
Classification (IPC)B29C45/42 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedFeb 5, 1991Patent grantedNov 3, 1998Term endedFeb 5, 2011

Sources & verification

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