Cook-in carton with improved integral support structure
US4505391A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 16, 1983 |
| Grant date | Mar 19, 1985 |
| Priority date | — |
| Expiry date | Aug 16, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/903
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A cook-in carton includes a two-panel wall. The inner one of the two panels is provided with vent openings, and the outer one of the panels extends over the openings and is adhered to the inner panel by tabs on opposed edges thereof. The outer panel includes between the tabs a weakened section and opposed flaps. Parallel score lines are provided in each of the flaps, and lugs are formed on the free edges of the flaps upon removal of the weakened section. The flaps are then foldable, in accordion fashion, followed by insertability of the lugs into apertures aligned therewith, where they are restrained in formation of carton support legs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.