Method of printing layers having substantially exact registration
US4925705A · kind A · utility
36Cited by
6References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1986 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Dec 23, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49155
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of printing a number of superimposed or otherwise geometrically related layers on a substrate with exact registration which comprises printing said layers over one or more areas on said substrate so as to overlap the boundary of said one or more areas and then removing the layers outside said areas. The product produced by the method and the intermediate product prior to removal of layers outside the areas can be used for security purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.