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. 07, 1976
Filed:
Dec. 04, 1974
Olof Stark, Rydsgard, SW;
Rolf Dilot, Lund, SW;
AB Ziristor, Lund, SW;
Abstract
A package having, for example, a parallelepipedic configuration is formed from a tube of laminated packaging material which is obtained by folding a web of the material so that opposite edge portions of the web overlap and form a longitudinally extending joint. The laminated packaging material consists of a base layer of paper or cardboard and facing layers of thermoplastic material, and the cut edge of the material which rests against the inside of the package is prevented from coming into contact with the contents of the package by application of a protective strip thereto along the joint zone, this strip being a laminate consisting of a base layer coated on both sides with a thermoplastic material which is sealed to the inside thermoplastic layer of the package. The base layer of the protective strip has a higher softening temperature than that of the inside thermoplastic layer of the packaging material.