Multiply bag with tear strip opening mechanism
US6213644A · kind A · utility
14Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1999 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Aug 12, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D31/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A multiply bag and method of forming the same in which the inner ply of the bag has a longitudinal extending tear strip assembly grippable by the user to facilitate opening of the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.