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Expired Canadian patentCanada

Method and arrangement for fastening and centering punching tools

CA 1069385 A · Owner: Malmberg, Sven K.B. · Inventors: Malmberg, Sven K.B.

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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 method and arrangement is provided for fastening and centering a tool comprising a die element and a punch element in a press. A centering setup socket is axially displaceable on one tool element and has close fit on the other tool element. The setup socket remaining on said one tool element is retractable from the other tool element by the relative movement of the tool elements.

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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069385 A
Classification (IPC)B26F1/02 +2 more

Sources & verification

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