Paper inner container for holding liquid refill contents
US10479548B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2016 |
| Grant date | Nov 19, 2019 |
| Priority date | — |
| Expiry date | May 18, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/62
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A paper inner container for storage of refilling liquid content, which enables a suction port to be easily formed at a center of an upper surface thereof. The paper inner container includes: four body panels, which form a body having a square tubular shape; and a pair of upper-surface forming panels and a pair of side panels, which are continuously provided on upper edges of the body panels to form an upper surface. The pair of upper-surface forming panels face each other and overlap in a vertical direction. The pair of side panels are positioned between the pair of upper-surface forming panels to face each other and are folded up along with overlapping of the upper-surface forming panels. The pair of upper-surface forming panels have holes, which are formed at centers of the upper-surface forming panels to serve as a suction port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.