System and method for providing passive noise reduction
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 6, 2008
Issued Date -
N/A
app pub date -
May 21, 2004
filing date -
May 21, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A passive noise reduction apparatus has a headset with at least one ear cup attached to the headset, the ear cup having an ear side and a shell side. An inner shell, having a cup side and an outer side, is mounted to and substantially covers the shell side of the ear cup wherein the cup side of the inner shell faces the shell side of the ear cup. An outer shell, having an inner side and a distal side, is mounted to and substantially covers the inner shell, wherein the inner side of the outer shell is in substantially contiguous contact with the outer side of the inner shell.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully