Paperboard container having leak preventative raised sealing scores
US5021040A · kind A · utility
9Cited by
4References
2Claims
0Family size
Inventor
Key dates
| Filing date | May 21, 1987 |
| Grant date | Jun 4, 1991 |
| Priority date | — |
| Expiry date | May 21, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D5/061
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Improved liquid containers are provided characterized by at least one raised sealing score formed in the blank such that when assembled, the raised portion of the sealing score substantially abuts the free edge of a side seam and/or bottom panel, respectively, thereby eliminating liquid seepage from said container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.