Method of providing a visual indication of depletion of a fluid
US10076182B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Mar 13, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A method of providing a visual indication of depletion of an oral care fluid. In one aspect, the method provides a visual indication of depletion of an oral care fluid contained within a reservoir of an oral care implement having a delivery member formed of a capillary material. The method includes: a) providing an indicator fluid in the reservoir with the oral care fluid, the oral care fluid being a different color than the indicator fluid and immiscible with respect to the indicator fluid; and b) upon depletion of the oral care fluid from the reservoir, delivering the indicator fluid to a visible portion of the deliver member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.