The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2022
Filed:
Dec. 13, 2019
Toppan Printing Co., Ltd., Tokyo, JP;
Shunsuke Yajima, Tokyo, JP;
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Abstract
An object is to provide a packaging bag that can be suitably used with provision of a score line. The packaging bag has a rectangular shape formed by overlapping film sheets and sealing at least three edges thereof to form a container part. In the packaging bag, a score line, in which the strength of the film is reduced, is formed on the container part away from the seal part in plan view. The packaging bag further includes a notch formed in at least one edge among the three edges and serving as a start point for breaking the film when the container part is to be opened. The score line is formed along a straight line extending from the notch to an edge facing the edge in which the notch is formed, in a direction perpendicular to the edge in which the notch is formed.