Process for coloring surfaces
US4040353A · kind A · utility
13Cited by
9References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 28, 1975 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Oct 28, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F19/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for coloring surfaces in such a way that two juxtaposed colored areas cannot be visually perceived as distinct from one another unless their distance from the eye drops below a predetermined distance. The first area is colored by juxtapositioning unitary zones of at least two colors and the second area is colored by the resultant color of the optical mixture of the colors used for the first area. One important application of the invention is in display advertising.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.