System for preserving and delivering gas-containing solutions
US5881879A · kind A · utility
5Cited by
9References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 7, 1997 |
| Grant date | Mar 16, 1999 |
| Priority date | — |
| Expiry date | Feb 7, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/807
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A container system for containing and preserving gas generating solutions such as bicarbonate-containing solutions is provided. The system includes an outer container or barrier that is gas impermeable. The system also includes an indicator for visually indicating when gas has been permitted to leak or escape from the outer container thereby changing the physical characteristics of the gas generating solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.