The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1980
Filed:
Jul. 24, 1978
Edwin C McLaren, Apple Valley, MN (US);
Champion International Corporation, Stamford, CT (US);
Abstract
A hermetically sealed carton of the type having a generally rectangular cross-section with four side walls, a bottom closure and a top closure including a vertical fin formed by a face-to-face seal of the outer portions of two opposed top closure flaps integrally formed with and hingedly attached to opposed side walls and triangular folds integrally formed with and hingedly attached to the other opposed side walls, with the improvement comprising means joining said fin portions only at the base thereof in a face-to-face relationship and scorelines placed in said fin portions such that when an upward pressure is applied to one of said triangular folds of said top closure, said fin portions separate at said scorelines above said joining means to allow easy access for separating said fin portions.