Patent ID: 6155423
Filing Date: 2000-12-05
Classification: B65D

Abstract:
A blister package including:(a) a unitary blister sheet defining a plurality of unit package regions, each said unit package region including a recess having an open top and a flange surrounding said recess; and(b) a unitary sheet of lidding material peelably sealed to said flanges, whereby said package includes a plurality of unit packages, each said unit package incorporating one unit package region of said blister sheet and a portion of said sheet overlying that unit package region,(c) said sheet of lidding material having lines of weakness extending along borders between adjacent unit package regions, each said line of weakness including perforations and spaces between perforations, said lines of weakness crossing one to define intersections, said lines of weakness having spaces at said intersections;(d) said blister sheet and said sheet of lidding material defining elongated unsealed areas along said boarders, said elongated unsealed areas being aligned with said lines of weakness;(e) said blister sheet and said sheet of lidding defining corner unsealed areas at said intersections of said lines of weakness; and(f) said blister sheet and said sheet of lidding material defining a perimeter including notches, said elongated unsealed areas extending to said notches.