Process for obtaining a copy disk from an original recording carried by a matrix
US4452748A · kind A · utility
7Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 1982 |
| Grant date | Jun 5, 1984 |
| Priority date | — |
| Expiry date | Sep 23, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/81
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a process for obtaining information-carrying disks by moulding from a recorded matrix. The invention makes it possible to obtain a disk having a recording area and intact areas, which are separated by stop areas. The invention more particularly applies to the production of video disks and disks useable in information technology. It facilitates the installation of covers on the disks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.