Water purification system
US4298475A · kind A · utility
79Cited by
7References
2Claims
0Family size
Inventor
Key dates
| Filing date | Jul 18, 1980 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | Jul 18, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A20/208
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A portable water purifier is described comprising an elongated tube having a filtering agent, a bactericidal agent and an adsorbent material retained in the tube. The user supplies suction from the mouth to draw water through the tube for filtering out foreign material and purifying the water prior to use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.