Rupturable opening for sealed container
US7556191B2 · kind B2 · utility
8Cited by
18References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2004 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Sep 5, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2231/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A container formed from a paperboard laminate and including a rupturable opening for gaining access to the contents of the container, the opening being defined by an embossment pattern in a wall of the container. The embossment defines a weakened area which includes the layers of the laminate, but without destruction or deterioration of selected ones of the barrier/sealing layers of the laminate. A method is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.