Container closure
US9248943B2 · kind B2 · utility
2Cited by
37References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Feb 18, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12H1/20
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A crown system includes a crown having a top surface and a bottom surface and a liner having a top surface that contacts a bottom surface of the crown. The liner is configured to absorb oxygen in a headspace and includes at least about 2.2 micromoles of sodium sulfite per cubic millimeter in a volume of the liner to a depth of about 0.003 millimeter from a bottom surface of the liner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.