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:
Sep. 24, 1985
Filed:
Mar. 03, 1983
Applicant:
Inventor:
Hisao Kai, Chiba, JP;
Assignee:
Taisei Kako Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
428 35 ; 206632 ; 206820 ; 428 43 ; 428192 ; 428906 ;
Abstract
A plastic film product, such as a sealed bag, wound film or adhesive tape, has a plurality of random scratches or cuts having notches toward the other side of the film, formed along the edges thereof so as to be shallow and small enough to be invisible to the naked eye in order to reduce resistance to tearing perpendicular to the edges.