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Expired Canadian patentCanada

Apparatus for cutting and removing package material

CA 1318237 C · Owner: Uchida, Hisasi · Inventors: Uchida, Hisasi; Hanamoto, Masasi; Hirao, Masao

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

An apparatus for cutting open and removing a sheetlike package material from an elongate packaged object such as a stack of can ends includes means for stretching the package material to form a loop-like slackened portion of the package material extending in a longitudinal direction of the packaged object, a cutter for cutting open the slackened portion, and a moving device for moving the package material and the cutter relatively to each other in the longitudinal direction of the packaged object. The package material wrapped around the packaged object is stretched to form the slackened portion. While the packaged object or the cutter is being moved by the moving device to move the packaged …

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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 25, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 25, 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.
FiledJanuary 27, 1989
GrantedMay 25, 1993
Term endedMay 25, 2010
Patent numberCA 1318237 C
Classification (IPC)B65B69/00 +1 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJan 27, 1989Patent grantedMay 25, 1993Term endedMay 25, 2010

Sources & verification

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