Closure strips for a sheet or a bag, and a resulting sheet...

Details Closure strips for a sheet or a bag, and a resulting sheet... Closure strips for a sheet or a bag, and a resulting sheet...

2006-04-28

2009-10-20

Lavinder, Jack W. (Department: 3677)

Flexible bags

With closure

Rib and groove

C024S399000, C024S400000, C383S064000, C383S061200

Reexamination Certificate

active

07604407

ABSTRACT:
The present invention relates to a fastener or closure assembly for fitting to a sheet or to the mouth of a packaging bag, and comprising at least one fastener or closure strip formed by a support web and a fastener or closure element carried by the web, the assembly including sequential cuts occupying a fraction of the width of the support web of the strip, outside the fastener or closure element and distributed over the length of the assembly in order to suppress the effects of warping, curving, or curling of the assembly.

REFERENCES:
patent: 4246288 (1981-01-01), Sanborn, Jr.
patent: 4655862 (1987-04-01), Christoff et al.
patent: 5063639 (1991-11-01), Boeckmann et al.
patent: 5722128 (1998-03-01), Toney et al.
patent: 2003/0194154 (2003-10-01), Machacek et al.
patent: 2006/0171610 (2006-08-01), Buchman et al.

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