Selective attenuating earplug
US10441472B2 · kind B2 · utility
0Cited by
17References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2016 |
| Grant date | Oct 15, 2019 |
| Priority date | — |
| Expiry date | Aug 21, 2037 |
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.