Method of making keys of a keyboard
US4748046A · kind A · utility
6Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 1987 |
| Grant date | May 31, 1988 |
| Priority date | — |
| Expiry date | Feb 24, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2229/006
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of making any key of a keyboard having a top surface on which a symbol is formed by padding. An ultraviolet-curing resin is applied by padding to only the surface of a material forming the symbol to form an overcoating layer covering only the surface of the symbol. The layer is cured by ultraviolet radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.