Liquid applicator for coloring a liquid
US6991393B2 · kind B2 · utility
29Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2004 |
| Grant date | Jan 31, 2006 |
| Priority date | — |
| Expiry date | Mar 9, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2200/1018
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of making a liquid applicator having a flexible hollow body within which a liquid-filled, frangible ampoule is received. The liquid applicator also has a porous element containing colorant positioned such that when the ampoule is fractured, the liquid flows through the porous element containing colorant. Colorant is transferred to the liquid as it flows through the porous element. The resulting colored solution may be applied to a desired surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.