Selective attenuating earplug
US9814625B2 · kind B2 · utility
9Cited by
17References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 4, 2013 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Nov 30, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2250/0069
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A selective attenuating earplug is provided. In an exemplary embodiment, a selective attenuating earplug includes a switch adjustable between a first position and a second position, and the switch includes at least one cantilever spring arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.