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. 17, 1994
Filed:
Jun. 23, 1992
Applicant:
Inventors:
Assignee:
Toyo Seikan Kaisha Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
428 352 ; 428 353 ; 428 43 ; 428138 ; 428192 ; 428458 ; 428461 ; 428483 ; 383200 ; 229237 ;
Abstract
A laminated film bag is made of laminated films each composed of an outermost layer formed of a polyester resin film, an innermost layer formed of a polyolefin resin film and an intermediate layer formed of an aluminum foil, the polyolefin resin film has formed thereon score lines having a depth of 1/20 to 2/3 of the thickness of the polyolefin resin film and an opening width of 0.5 to 7 mm, at intervals of 1 to 15 mm.