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:
Jan. 03, 1984
Filed:
Apr. 14, 1981
Herwig Pupp, Lund, SE;
Tetra Pak International AB, Lund, SE;
Abstract
The invention relates to a packing material in the form of a web intended for aseptic packages. The packing material is a laminate with the side of the packing material web which is intended to form the inside of the packages consisting of a thermoplastic layer, preferably polyethylene. This polyethylene layer has a sterile surface and is covered in turn by a thin plastic film which completely covers the polyethylene layer and maintains its sterility. On the conversion of the packing material to packages, the thin plastic film is separated from the surface-sterile polyethylene layer, whereupon the remaining packing material is formed to a tube which is filled with sterile contents so as to form closed packing units.