Disc jacket for retaining magnetic recording disc
US4251843A · kind A · utility
25Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1979 |
| Grant date | Feb 17, 1981 |
| Priority date | — |
| Expiry date | Sep 14, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/505
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The inner surface of a disc jacket for retaining a magnetic recording disc is provided with a fibrous layer containing an antistatic agent. The fibrous layer is composed of a nonwoven cloth impregnated with the antistatic agent. The antistatic agent may be applied to the nonwoven cloth by spraying instead of impregnation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.