Patent ID: 8403561

Claim:
A packaging container having a tetrahedral-shaped bag assembly, the packaging container being formed: (a) by closing two opposing sides of a pair of film or sheet portions facing each other by using a first seam or folded portion formed between first and second corners of the first seam or folded portion, and a second seam or folded portion formed between first and second corners of the second seam or folded portion; (b) by closing one side of the other two sides of the pair of film or sheet portions facing each other by using a third seam or folded portion between the first corner of the first seam or folded portion and the first corner of the second seam or folded portion; and (c) by closing the other side of the other two sides of the pair of film or sheet portions by a fourth seam or folded portion that is substantially orthogonal to the third seam or folded portion as a result of bringing together and joining the second corner of the first seam or folded portion and the second corner of the second seam or folded portion; and (d) the first seam or folded portion and the second seam or folded portion are so constructed as to be respectively torn apart for opening of the packaging container, wherein the first seam or folded portion and the second seam or folded portion are used as respective unsealing portions along a majority of the length of the first seam or folded portion and the second seam or folded portion.