Hearing protector with compartment for rechargeable battery pack

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10172742
APP PUB NO 20180014972A1
SERIAL NO

15548039

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Importance

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Abstract

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A hearing protection device is provided. The hearing protection device can include a speaker to relay sounds, such as conversations, to the user of the hearing protection. The hearing protection device can be powered by a rechargeable battery pack or separately by standard batteries.

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Patent Owner(s)

Patent OwnerAddress
3M INNOVATIVE PROPERTIES COMPANYP O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fletcher, Douglas D Woodbury, US 28 595
Hemberg, Eric O Shatin, HK 21 349
Hemberg, Oscar M Dalaro, SE 23 485

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