Fastener closure arrangement for flexible packages
US6974256B2 · kind B2 · utility
29Cited by
172References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | May 19, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D33/2541
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flexible package is provided with a shrouded slide fastener closure. The shroud includes an opening for the slide, extending to a line of weakness joining the shroud to the remainder of the flexible package. The opening includes an acute angle portion communicating with the line of weakness to facilitate tearing of the shroud from the flexible package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.