Multilayer draw tape
US8657495B2 · kind B2 · utility
7Cited by
10References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2010 |
| Grant date | Feb 25, 2014 |
| Priority date | — |
| Expiry date | Sep 28, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65F1/002
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The bag includes a draw tape that may be used to cinch closed the opening of the bag. The draw tape is multilayer with a polypropylene core and propylene-ethylene copolymer or other suitable polymers in the outer layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.