Breathing mask
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 7, 1997
Grant Date -
N/A
app pub date -
Mar 26, 1996
filing date -
Mar 26, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides different size breathing masks in which single size filtration shells are attached to single size face contacting members at the same periphery. A single size face contacting member has one, or more than one size, inner breathing opening with a narrower cut profile in the nose area than in the mouth and chin area. Such different size breathing masks would fit and provide effective seal for more than one wearer's size.
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