Substrate treatment processes
US8808502B1 · kind B1 · utility
0Cited by
5References
18Claims
0Family size
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Key dates
| Filing date | Mar 29, 2013 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Mar 29, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H17/67
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process where substrates, such as documents like smooth coated papers, are exposed to a weak acid, a weak acid solution, or mixtures thereof for the purpose of increasing the surface roughness of the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.