Film material
US6899931B2 · kind B2 · utility
3Cited by
187References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2001 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Sep 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/14
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A material includes a first film layer that carries an electric charge, a second film layer secured to the first film layer to form a pocket and a volatile substance disposed in the pocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.