Solid imaging apparatus having a semi-permeable film
US5391072A · kind A · utility
272Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1992 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Feb 3, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB33Y10/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for fabricating integral three-dimensional objects from successive layers of photoformable compositions by exposing the layers of the composition through a semi-permeable film that allows creation of release coatings on the side of the film facing the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.