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. 19, 1981
Filed:
Apr. 02, 1979
Lars-Eric Piltz, Dalby, SE;
Bo T Quist, Bjarred, SE;
Folke Kiellarson, Barseback, SE;
Siwer Mansson, Lund, SE;
Bengt Nilsson, Sodra Sandby, SE;
AB Akerlund & Rausing, , SE;
Abstract
An opening device is taught for packages comprising a substantially rigid outer wall portion and an inner layer of substantially gas-tight material (preferably a metallic foil), wherein the outer wall portion includes a first tearing notch defining an opening and a second tearing notch defining a grip tongue. The outer wall and the inner wall being interconnected substantially over their total surfaces facing each other with said outer wall portion and said inner layer being separated within an area substantially under said grip tongue. Preferably, the grip tongue is located completely within the opening defined by said first tearing notch.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile