Membrane having a multipart structure
US8496086B2 · kind B2 · utility
6Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Jul 30, 2013 |
| Priority date | — |
| Expiry date | Oct 21, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2307/029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a composition of a speaker membrane, consisting at minimum of the following layering sequence:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.