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Expired Canadian patentCanada

Cutting device for paper and foil webs, particularly for printers, plotters, copiers and similar machines

CA 1251129 A · Owner: International Business Machines Corporation · Inventors: Nitschke, Manfred E.; Arnold, Seighard E.

CIPO record

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

The cutting wheel (40) is rotatably guided in a cutting carrier (50), and under the force of a spring acting axially against the cutting rail (50) so that the cutting wheel (40) is pivotable out of a neutral starting position plane parallel to the cutting rail (50), by an angle (.alpha.max) corresponding to the maximum admissible cutting angle between cutting wheel (40) and cutting rail (50). Depending on the force (FF) of a spring (46), the cutting resistance (Fw) and the, frictional force between cutting wheel (40) and cutting rail (50), the cutting wheel (40) adjusts itself automatically to the respective cutting angle (.alpha.s). The pivoting range for the cutting wheel (40) extends in …

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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 March 14, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 14, 2006.
  • 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 25, 1985
GrantedMarch 14, 1989
Term endedMarch 14, 2006
Patent numberCA 1251129 A
Classification (IPC)B26D1/20 +2 more

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedJune 25, 1985Patent grantedMarch 14, 1989Term endedMarch 14, 2006

Sources & verification

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