Paper lunch box
US6092718A · kind A · utility
1Cited by
6References
1Claims
0Family size
Inventors
Key dates
| Filing date | Jan 4, 2000 |
| Grant date | Jul 25, 2000 |
| Priority date | — |
| Expiry date | Jan 4, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/48022
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A paper lunch box includes a box body, at least one longitudinal partition member and at least one transverse partition members respectively installed in the box body to support the box body in shape and to separate the holding space of the box body into separated compartments, the box body being formed of a patterned cardboard folded up into a rectangular container having vertical peripheral walls of double-layer construction, the transverse and longitudinal partition members being formed of a respective patterned cardboard, each having a .andgate.-like cross section and reinforcing end flaps for mounting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.