Wet surface indication
US10964236B2 · kind B2 · utility
0Cited by
8References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2419/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A product (20) for use on a surface or as part of a surface, the product comprising: a first layer (22) which carries an indication; and a second layer (26) which overlies at least a portion of the first layer (22), the second layer (26) comprising a porous polymer; wherein the second layer (26) is opaque when dry such that the indication is masked and transparent when wet such that the indication is revealed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.