Ovenable food container with removable lid
US4930639A · kind A · utility
62Cited by
13References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 2, 1989 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | Aug 2, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/903
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A container for packaging, storing and heating food is prepared from a single blank of paperboard that is coated on at least one side with a thermally stable heat-sealable coating. The container is substantially rectangular in shape and includes upstanding side, front and rear walls connected to a bottom panel, gusset panels at each corner, integral flanges connected to the side walls, an integral lid foldably attached to the rear wall and adapted to be heat-sealed to the side wall flanges, and a front closure flap integral with the lid and adapted to overlap and be sealed to the front wall.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.