Thermoplastic bag
US4672684A · kind A · utility
48Cited by
20References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1986 |
| Grant date | Jun 9, 1987 |
| Priority date | — |
| Expiry date | Jan 24, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D31/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A thermoplastic shipping bag having a thermoplastic inner ply comprising a mesh which permits the packaging of finely powdered materials without releasing unacceptable levels of powders to the atmosphere during or after filling and without requiring significant modification to packaging systems used to fill and process multi-wall paper shipping bags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.