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:
Aug. 23, 1988
Filed:
Jul. 26, 1985
Applicant:
Inventor:
John P Winter, Appleton, WI (US);
Assignee:
Presto Products, Incorporated, Appleton, WI (US);
Primary Examiner:
Int. Cl.
CPC ...
B65B / ; B65D / ; A23L / ; B32B / ;
U.S. Cl.
CPC ...
426113 ; 426107 ; 426118 ; 426127 ; 426234 ; 426410 ; 426412 ; 428 35 ; 428347 ; 428480 ; 428483 ; 428349 ; 428481 ; 264171 ; 525444 ;
Abstract
Multiple layer nonoriented heat sealable films are disclosed having a base substrate layer of poly(ethylene terephthalate) (polyester) or polyester copolymer and at least one heat sealable surface layer of a copolyester. The films are prepared by conventional cast or blown film coextrusion techniques.