Carton blank and carton formed therefrom
US5857614A · kind A · utility
53Cited by
18References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1997 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Sep 19, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/744
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A carton formed from a carton blank so that the carton has an outer layer formed from a relatively rigid material and an inner layer formed from a relatively flexible fluid impervious material. The outer layer and the inner layer have superposed weakened portions secured together so that the carton may be opened along the superposed weakened portions in one simultaneous operation. Also, in another embodiment, a similar carton is provided with a pour spout.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.