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Expired Canadian patentCanada

Paper handling apparatus

CA 2007941 C · Owner: Komada, Takashi · Inventors: Mori, Goro; Seki, Nobuyoshi; Kikuchi, Toshiyuki

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 paper handling apparatus having a plurality of bins and a chuck unit and a stapler which are movable along the bins and causing the stapler to bind an end portion of a stack of paper sheets which have been received from a copier or similar image forming apparatus, sorted, and then loaded on any one of the bins. The chuck unit has an upper and a lower chuck. After the stapler has bound a stack of paper sheets a push bar, independent of the chucks of the chuck unit pushes the end of the stack to return it into the bin. Both the upper and lower chucks are movable up and down. The force which the chucks exert on a stack of paper sheets is controlled in matching relation to the thickness of …

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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 January 17, 1990 and granted June 15, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 17, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 17, 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.
FiledJanuary 17, 1990
GrantedJune 15, 1993
Term endedJanuary 17, 2010
Patent numberCA 2007941 C
Classification (IPC)B27F7/00 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJan 17, 1990Patent grantedJune 15, 1993Term endedJan 17, 2010

Sources & verification

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