Plastic bag and plastic bag making apparatus
US10189608B2 · kind B2 · utility
3Cited by
1References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Dec 22, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2160/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a plastic bag including a triangular flap which has a folded hypotenuse and an open hypotenuse, a flow path is formed by the folded hypotenuse or the open hypotenuse to discharge air or gas through the flow path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.