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Carton blank and method for forming it

  • US 5,632,402 A
  • Filed: 01/17/1996
  • Issued: 05/27/1997
  • Est. Priority Date: 12/21/1992
  • Status: Expired due to Term
First Claim
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1. A carton blank comprising:

  • a unitary sheet of a relatively rigid material having an inner surface and an outer surface;

    said unitary sheet of a relatively rigid material having a left side edge, a right side edge, a top edge and a bottom edge;

    said unitary sheet of a relatively rigid material having a plurality of cut and fold lines for dividing said unitary sheet of a relatively rigid material into at least a plurality of sidewall panels, a closure panel, a glue tab panel and end panels;

    each of said plurality of sidewall panels, said closure panel, said glue tab panel and said end panels having an outer surface; and

    a unitary sheet of a relatively flexible fluid impervious material superposed over and secured to said outer surfaces of said at least a plurality of said sidewall panels, said closure panel, said end panels and only a portion of said glue tab panel so that the remaining portion of said outer surface of said glue tab panel portion is exposed for forming an effective seal with the exposed portion of said closure panel of said unitary sheet of a relatively rigid material.

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