Egg carton
US5494164A · kind A · utility
20Cited by
20References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Sep 19, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D85/324
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An egg carton integrally molded from a sheet of polystyrene material has a cover and a tray having a plurality of cells. Each cell has a bottom, and exterior and interior sidewalls extending from the bottom and surrounding said each cell and a hinge interconnecting the tray and the cover. According to one aspect of the invention, the sidewalls of each cell are configured such that expansion of the cell is biased toward the interior of the egg carton.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.