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Expired Canadian patentCanada

Carton with recessed ends and blank therefor

CA 1283641 C · Owner: The Mead Corporation · Inventors: Chaussadas, Jean

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

A carton accommodating a group of articles disposed in at least three parallel rows (C) in which the arrangement of the articles in rows is such that a void (CR) is present at each end of the carton intermediate the outer rows (RL, RR) of articles. The carton has a top (22,22a) and a base (12,32; 12a,32a) interconnected by spaced side walls (14,24); 14a,24a) thereby forming a tubular structure and end closure panels closing each end of the tubular structure. The end closure panels include a top closure panel (88,88a) hinged to the top which has a portion (94,94a) displaced into the void (CR) and a base end closure panel (50,50a) hinged to the base which has a portion secured to the …

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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 April 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 30, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 6, 1987
GrantedApril 30, 1991
Term endedApril 30, 2008
Patent numberCA 1283641 C
Classification (IPC)B65D71/00

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedFeb 6, 1987Patent grantedApril 30, 1991Term endedApril 30, 2008

Sources & verification

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