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. 14, 1993
Filed:
Mar. 10, 1993
Hampton E Forbes, Jr, Newark, DE (US);
Westvaco Corporation, New York, NY (US);
Abstract
A venting/opening scheme for tray type cartons, wherein the tray has a continuous, upper peripheral flange to which a lid is bonded, and the tray includes opening instructions printed on a side wall for opening one of two adjacent corners of the tray, the improvement wherein a venting/opening means is applied to the tray flange at both of the two adjacent corners of the tray where the opening instructions are printed. The application of a venting/opening means at each corner allows the cartons to be opened by peeling the lid off from left-to-right or from right-to-left. The venting/opening means comprises partial depth cut lines located in the underside of the tray flange at each adjacent corner of the tray. The partial depth cut lines allow the portion of the tray flange outboard of the cut lines to be broken away from the continuous flange and used to lift the corner of the lid, thereby interrupting the bond between the lid and flange for venting and opening the carton