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Expired Canadian patentCanada

Document reproduction machine having book edge copying capability

CA 1329634 C · Owner: Xerox Corporation · Inventors: Rees, James 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 book edge copying system is enabled by providing a full rate/. half rate scanning system modified to tilt the system axis so as to move the start of scan location to a point coincident with the book edge location. A full rate mirror, in one embodiment, is tilted at an angle to the platen perpendicular thereby effectively tilting the system axis. The off-axis angle introduced at the scan mirror is compensated for by appropriate rotation of the projection lens and the image side optical elements.

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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 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 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 27, 1989
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329634 C
Classification (IPC)G03G15/04 +2 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 27, 1989Patent grantedMay 17, 1994Term endedMay 17, 2011

Sources & verification

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