Protective structure for jacket for rotatable magnetic recording media
US4811152A · kind A · utility
6Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1986 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Sep 2, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B23/0332
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention provides an inexpensive structure for a protecting jacket for rotatable magnetic recording media which has a dimension sufficient to cover openings on the jacket and is provided as a sheet adhered to the jacket to cover said openings and prevent entry of dust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.