Patent ID: 7753205

Claim:
A packaging container comprising: a first clamshell half, a second clamshell half, and a foldable connecting portion that connects one edge of the first clamshell half with one edge of the second clamshell half, a linearly extending welded portion defining a sealed portion that fastens the first clamshell half and the second clamshell half to each other, the sealed portion being located at and sealing only a second edge of the packaging container on a side opposite to the connecting portion at said one edge, a severed portion that is provided in at least one of the first clamshell half and the second clamshell half, adjacent to the sealed portion and between the sealed portion and said connection portion, wherein the severed portion is defined by two lines of perforations that are provided in parallel, at least one of the two lines of perforations is provided where the first clamshell half and the second clamshell half contact each other, a picking tab, adapted for being held by a user's fingers, provided at-least one of the ends of the lines of perforations in the direction where the lines of perforations delimiting the severed portion extend and that is defined by cuts which have a continuous, predetermined length, the picking tab having a width larger than the gap between the two parallel lines of perforations delimiting the severed portion; a room created between the first clamshell half and the second clamshell half for accommodating a packaged object when the clamshell halves are fitted to each other; U shaped fitting portions that are provided around the perimeter of the packaging container and make the first clamshell half and the second clamshell half fit against each other, wherein said first and second clamshell halves each include plural spaced convex and mating concave contours on an inner wall of said U shaped fitting portions, said contours enabling said first and second clamshell halves to engage each other when said first and second clamshell halves are fitted against each other.