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Expired Canadian patentCanada

Method of forming zigzag-shaped piles from a continuous band of a flexible material and machine for carrying out this method

CA 1323643 C · Owner: Syntone · Inventors: Martin, Gaston Martial

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 invention relates to a method and a machine for forming zigzag-shaped piles from an endless band of paper wherein the band is deposited and folded on an appropriate support and at, the end of the formation of a pile a rupture of the band is, provoked along a predetermined folding line the first folding, flap of the following pile to be formed is brought into a predetermined position, the forward movement of the band is stopped and the pile which has just been completed is removed the traction force for rupturing the band being exerted during the forward motion of the same, by applying the band by one of its surfaces advantageously at the predetermined rupture line against stationary …

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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 October 26, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 26, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 8, 1988
GrantedOctober 26, 1993
Term endedOctober 26, 2010
Patent numberCA 1323643 C
Classification (IPC)B41L1/32 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedDec 8, 1988Patent grantedOct 26, 1993Term endedOct 26, 2010

Sources & verification

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