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Patent
D575390
Priority
Jun 30 2005
Filed
Jun 30 2005
Issued
Aug 19 2008
Expiry
Aug 19 2022
Assg.orig
Entity
unknown
11
10
n/a
The ornamental design for an exhalation valve filter , as shown and described.
FIG. 1 is a perspective view, showing the new design for an exhalation valve filter; the filter is in the form of a nonwoven fibrous web and covers the exhalation valve on a respiratory mask;
FIG. 2 is a rear view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a right side view thereof, the left side view being a mirror image of the right side view.
The broken line showing forms no part of the claimed design, and the shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.
Parkin, Derek A. , Scott, Chris W. , Curtis, Abigail L. , Coote, Lawrie D.
Patent
Priority
Assignee
Title
10827787 ,
May 03 2007
3M Innovative Properties Company
Maintenance-free respirator that has concave portions on opposing sides of mask top section
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May 03 2007
3M Innovative Properties Company
Maintenance-free respirator that has concave portions on opposing sides of mask top section
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May 03 2007
3M Innovative Properties Company
Anti-fog respirator
D638929 ,
Jul 23 2007
3M Innovative Properties Company
Respirator head harness
D657050 ,
May 03 2007
3M Innovative Properties Company
Respiratory mask
D657449 ,
Sep 20 2007
3M Innovative Properties Company
Filtering face-piece respirator support structure
D660415 ,
Jul 23 2007
3M Innovative Properties Company
Respirator head harness
D708734 ,
May 03 2007
3M Innovative Properties Company
Respiratory mask
D746439 ,
Dec 30 2013
Kimberly-Clark Worldwide, Inc
Combination valve and buckle set for disposable respirators
D899585 ,
Oct 12 2017
JSP LIMITED
Respiratory mask
D936208 ,
Apr 01 2020
Respiratory mask
Patent
Priority
Assignee
Title
5829433 ,
Jun 30 1995
Shigermatsu Works Co., Ltd.
Inhalation valve
6047698 ,
Aug 20 1998
Moldex-Metric, Inc.; MOLDEX-METRIC, INC A CALIFORNIA CORPORATION
Unidirectional fluid valve
6584976 ,
Jul 24 1998
3M Innovative Properties Company
Face mask that has a filtered exhalation valve
6805124 ,
Jul 24 1998
3M Innovative Properties Company
Face mask that has a filtered exhalation valve
D347298 ,
Oct 13 1992
Minnesota Mining and Manufacturing Company
Valve cover
D413166 ,
Mar 02 1998
Louis M. Gerson Co., Inc.
Face mask breathing valve
D431647 ,
Sep 06 1996
3M Innovative Properties Company
Personal respiratory protection device having an exhalation valve
D449377 ,
May 09 2000
3M Innovative Properties Company
Tabs on a personal respiratory protection device
D458364 ,
Nov 25 1996
3M Innovative Properties Company
Personal respiratory protection device that has left and right tabs
RE37974 ,
Jul 26 1996
3M Innovative Properties Company
Uni-directional fluid valve
Date
Maintenance Fee Events
n/a
Date
Maintenance Schedule
n/a