Protective cover for optically read digital disks
US6771588B2 · kind B2 · utility
5Cited by
13References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2002 |
| Grant date | Aug 3, 2004 |
| Priority date | — |
| Expiry date | Aug 25, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/0422
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A protective cover for protecting a read side of an optical disk, the protective cover including a substantially planar body being transparent and having a center hole, an outer edge and a generally planar annular surface extending between the outer edge and the center hole. A circumferential engagement structure is coupled to the outer edge of and completely encircles the planar body for engaging an outer edge of the optical disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.