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:
May. 15, 1990
Filed:
Aug. 05, 1988
Applicant:
Inventor:
Robert Wagner, Troisdorf-Sieglar, DE;
Assignee:
Stiegler GmbH Maschinenfabrik, Troisdorf-Sieglar, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B / ; B31B / ;
U.S. Cl.
CPC ...
493194 ; 493195 ; 493926 ;
Abstract
Bags, especially shopping bags, of a thermoplastic synthetic resin sheeting, are made to be free-standing. In the process for the production of the bags, the bags are provided in pairs. Each bag is provided with a handle hole and designed as a standing bag having an approximately sinusoidal load-bearing rim, with lateral cutoff weld seams and with a bottom pleat, with corner weld seams provided separately in the two pleat sections of the bottom pleat and extending from the bag sides obliquely toward the bag bottom, and with a flat bottom formed by the corner weld seams.