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Expired Canadian patentCanada

Apparatus for removing blanks from a pile and conveying them onwards

CA 2020284 C · Owner: Stieger, Othmar · Inventors: Stieger, Othmar

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Apparatus for removing blanks from a pile and conveying them onwards, A stack of blanks is guided between pile guides. Disposed on a support are holding members which can be laid against an exposed blank in the stack in order to grasp it and to be moved, with it away from the, stack. In the course of this the support is movable over a, path which starting from the stack, extends transversely to the plane of the blanks, then changes over into a direction at least substantially parallel to the plane of the blanks and leading to a pair of conveying members and finally again extends transversely to the plane of the blanks. The conveying members grip the blanks delivered to them by the support, …

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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 July 3, 1990 and granted May 31, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 3, 1990
GrantedMay 31, 1994
Term endedJuly 3, 2010
Patent numberCA 2020284 C
Classification (IPC)B65H3/08 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJuly 3, 1990Patent grantedMay 31, 1994Term endedJuly 3, 2010

Sources & verification

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