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:
Apr. 30, 1985
Filed:
Jun. 13, 1984
Applicant:
Inventor:
Norbert Buchner, Winnenden, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65D / ;
U.S. Cl.
CPC ...
220270 ;
Abstract
A lid for a packaging container including an easy opening tear-open part which is surrounded by a weakened line. The lid is molded from a compound material, which has an outer carrier layer of plastic, a middle barrier layer of metal foil and an inner heat-sealing layer of a thermoplastic material. In order to facilitate the initial tear of the tear-open part, the middle barrier layer is also thinned or ruptured at least in the starting segment in a location coinciding with the weakening line in the carrier layer.