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Expired Canadian patentCanada

Method for changing guide width and mechanism used therefor

CA 2134497 C · Owner: Noritsu Koki Co. Ltd. · Inventors: Narukami, Shinji

CIPO record

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

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Abstract From the Canadian patent

A mechanism for changing a guide width is provided to automatically change a width of a width guide depending upon papers differ from each other in true width in spite of the same nominal size. The mechanism Comprises a width guide, a pulse motor for moving the width guide in a width direction of the paper a detecting, board with detecting holes attached to a guide member of the width guide and a position sensor detecting a standard position of the detecting holes, and is provided to move the guide member only a distance of indicated pulses from the standard position.

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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 October 27, 1994 and granted January 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 27, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 27, 1994
GrantedJanuary 9, 2001
Term endedOctober 27, 2014
Patent numberCA 2134497 C
Classification (IPC)G03D13/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedOct 27, 1994Patent grantedJan 9, 2001Term endedOct 27, 2014

Sources & verification

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