Severable carton wall

Details Severable carton wall Severable carton wall

2005-08-16

2005-08-16

Mai, Tri M. (Department: 3727)

Envelopes, wrappers, and paperboard boxes

Paperboard box

Having means to facilitate opening the box by severing box...

C229S122100, C221S305000

Reexamination Certificate

active

06929172

ABSTRACT:
A frangible line defines a line of severance by extending across a carton wall that has a seam. The frangible line is extensively weakened along a predetermined segment where it traverses the seam. Preferably, the predetermined segment is extensively weakened by substantially disjoining the panel regions on either side of the line. Disjoinder is preferably achieved by making the predetermined segment a cut line.

REFERENCES:
patent: 3263861 (1966-08-01), Carr
patent: 3335940 (1967-08-01), Dykes
patent: 3356279 (1967-12-01), Root
patent: 4396143 (1983-08-01), Killy
patent: 5265798 (1993-11-01), DeMaoi et al.
patent: 5292059 (1994-03-01), Oliff
patent: 6155480 (2000-12-01), Botsford et al.
patent: 6176419 (2001-01-01), Holley, Jr.
patent: 6484903 (2002-11-01), Spivey et al.

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