Carton blank and method for forming it
US5632402A · kind A · utility
33Cited by
21References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1996 |
| Grant date | May 27, 1997 |
| Priority date | — |
| Expiry date | Jan 17, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/907
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A carton blank formed from a laminate of a relatively flexible fluid impervious material and a relatively rigid paperboard material is provided with paperboard to paperboard facing surfaces so that an effective seal can be formed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.