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Expired Canadian patentCanada

Package wrapping method and machine

CA 1295928 C · Owner: Treiber, Fritz F. · Inventors: Treiber, Fritz F.

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

Abstract of the Disclosure An elevator package wrapping machine comprises a film gripper for initially drawing fixed lengths of film into the machine. While the film is held by the film gripper and side clamps, a package is elevated into the film such that the height of the package draws a first addition to the film drawn by the gripper if, required. Film side and rear underfolders fold the lateral edges of the film and the rear edge of the film extending from the film source under the packages respectively. A film cutter is provided for severing the film from its source as the packages are being wrapped, and the cutter is controlled such that the timing of its operation is based on package …

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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 February 18, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 18, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 17, 1988
GrantedFebruary 18, 1992
Term endedFebruary 18, 2009
Patent numberCA 1295928 C
Classification (IPC)B65B11/54

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedAug 17, 1988Patent grantedFeb 18, 1992Term endedFeb 18, 2009

Sources & verification

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