Bag with easy open line of perforations
US4557385A · kind A · utility
60Cited by
9References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 23, 1984 |
| Grant date | Dec 10, 1985 |
| Priority date | — |
| Expiry date | Feb 23, 2004 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/58
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A gusseted bag having one end folded over along a fold line to form a closure for such end, which bag is provided with a line of perforations through the wall of the bag along a portion of one face and the adjacent gusset at or adjacent to the said fold line to provide easy access to the contents of the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.