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Expired Canadian patentCanada

Anti-wrap up device for web fed printing presses

CA 1307162 C · Owner: Goss Graphic Systems, Inc. · Inventors: Balow, Frank A.; Enstrom, Edward; Skipor, Eugene, Jr.

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

An apparatus for protecting the printing units of a web fed press from damage in the event of a web break after it leaves the press, The apparatus comprising: frame means and, free turning rotational inertia means including means journaled in the frame means for rotation in cooperative opposition with respect to each other and in constant contact with the traveling web to be driven thereby so that web will continue to be removed from the press by the inertia means in the event of a web break down stream therefrom.

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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 8, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 2009.
  • 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 13, 1988
GrantedSeptember 8, 1992
Term endedSeptember 8, 2009
Patent numberCA 1307162 C
Classification (IPC)B41F13/02 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMay 13, 1988Patent grantedSep 8, 1992Term endedSep 8, 2009

Sources & verification

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