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Expired Canadian patentCanada

Transfer roller device for printing presses

CA 1329225 C · Owner: Printing Research, Inc. · Inventors: Douglas, David D.

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

A roller transfer device for use in sheet fed rotary printing presses of the type employing a one and one half to one delivery system, the transfer device comprising a frame mounted to a drive shaft adjacent the press impression cylinder and, supporting diametrically disposed fabric covered rollers arranged to engage and support a printed sheet during transfer from the impression cylinder to a further processing station within the press.

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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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 29, 1989
GrantedMay 3, 1994
Term endedMay 3, 2011
Patent numberCA 1329225 C
Classification (IPC)B41F13/00 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 29, 1989Patent grantedMay 3, 1994Term endedMay 3, 2011

Sources & verification

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