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Expired Canadian patentCanada

Method and apparatus for opening printed products which have been folded off-center

CA 1264167 C · Owner: Ferag Ag · Inventors: Honegger, Werner; Hansch, Egon

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Overview

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

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Abstract From the Canadian patent

Printed products to be opened are held at their folded or spine edge and, with their open or fan edge located opposite to this folded edge, are fed forward with their fan edge leading into an opening or spreading device or apparatus. A lower portion of the printed products possesses a leading edge section or marginal lap section due to an off-center fold. Circulatingly driven grippers or clamps grip this lower portion of the printed products in the region of the leading edge section and guide it along a downwardly and backwardly curved path. The printed products are simultaneously further transported or conveyed by means of feeders or feeding devices. Both portions of each printed product …

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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 2, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 30, 1986
GrantedJanuary 2, 1990
Term endedJanuary 2, 2007
Patent numberCA 1264167 C
Classification (IPC)B65H39/02 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedJune 30, 1986Patent grantedJan 2, 1990Term endedJan 2, 2007

Sources & verification

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