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:
Oct. 18, 1983
Filed:
Oct. 21, 1981
Applicant:
Inventor:
Ermanno Bortolani, Milan, IT;
Assignee:
W. R. Grace & Co., Cryovac Division, Duncan, SC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65B / ; B65D / ;
U.S. Cl.
CPC ...
206633 ; 53133 ; 53412 ; 83697 ; 206461 ; 493 79 ; 493 80 ; 493418 ; 493450 ;
Abstract
An easy-open pack is formed by (a) pre-cutting a corner of a film panel which, in the finished pack, forms one panel to be sealed against another panel around the periphery of a product article to close the pack, and (b) carrying out the sealing operation while holding the tab formed by said pre-cut corner displaced away from contact with the other film panel, preferably by folding the tab back on itself, more preferably while tack sealing it in said folded configuration.