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:
Feb. 28, 1995
Filed:
Mar. 18, 1994
Applicant:
Inventors:
Philip F Cilia, Palos Hills, IL (US);
Vytautas Kupcikevicius, Oaklawn, IL (US);
Assignee:
Viskase Corporation, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B31B / ; B31B / ;
U.S. Cl.
CPC ...
493341 ; 493199 ; 493926 ;
Abstract
Bag making apparatus and method for forming a handle opening in a thermoplastic food packaging shrink bag includes both cold cutting and hot cut cutting operations to form a handle which, on heat shrinking the bag, is strong and has an enhanced appearance.