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Expired Canadian patentCanada

Sheet gripping apparatus

CA 1288446 C · Owner: Miller-Johannisberg Druckmaschinen Gmbh · Inventors: Weisgerber, Willi

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

This invention concerns a sheet gripper for sheet processing machines especially for single- and multi-color printing presses of random printing processes as well as for numbering machines, coaters folders, and similar apparatus. To permit interchange of one of several sheet grippers for another without removing the gripper spindle from the machine, the sheet gripper Is formed with an open portion whichencloses the gripper spindle through a maximum arc of 180° and is fixedly retained in radially centered relation against the gripper spindle by a gripper lifter or carrier also referred to as a drive dog, which is fixedly secured to the gripper spindle as by means of a screw or other …

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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 September 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 6, 1987
GrantedSeptember 3, 1991
Term endedSeptember 3, 2008
Patent numberCA 1288446 C
Classification (IPC)B65H5/14 +1 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 6, 1987Patent grantedSep 3, 1991Term endedSep 3, 2008

Sources & verification

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