Marking instrument including liquid ink
US6075070A · kind A · utility
8Cited by
20References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1996 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Sep 3, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A marking instrument includes a non-erasable ink including a colorant and a solvent having a water content of about 0-15% by weight and a viscosity of about 15 to 4,500 cps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.