Gable lid clamshell container
US5791554A · kind A · utility
4Cited by
19References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 26, 1997 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Jun 26, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/665
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A clamshell type paperboard container formed from a unitary blank of paperboard. Two embodiments are described. In the first, the container is square and the lid includes four triangular panels meeting at an elevated and central common point. In the second, the container in rectangular and the lid includes two triangular panels and two trapezoidal panels, and the central elevated portion of the lid includes an elongated ridge or rib. These constructions prevent stacking and hence inadvertent crushing of a closed and filled container. The slanting sides of the lids yield an easel effect for graphics thereon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.