Exhalation valve filter
Latest 3M Innovative Properties Company Patents:
Description
FIG. 1 is a perspective view, showing the new design for an exhalation valve filter.
FIG. 2 is a front view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is a right side view thereof, the left side view being a mirror image thereof; and,
FIG. 6 is a rear view thereof.
The broken line showing in FIGS. 1-6 forms no part of the claimed design. The shading that is shown in the Figures, including the criss-cross pattern, is provided only to illustrate contour and is not indicative of any particular texture, etc.
Claims
The ornamental design for an exhalation valve filter, as shown and described.
Referenced Cited
U.S. Patent Documents
4827924 | May 9, 1989 | Japuntich |
D347298 | May 24, 1994 | Japuntich et al. |
D389239 | January 13, 1998 | Scholey |
D413166 | August 24, 1999 | Snow et al. |
D431647 | October 3, 2000 | Henderson et al. |
6460539 | October 8, 2002 | Japuntich et al. |
6584976 | July 1, 2003 | Japuntich et al. |
6718982 | April 13, 2004 | Smith et al. |
6854463 | February 15, 2005 | Japuntich et al. |
7007695 | March 7, 2006 | Curran et al. |
20030005934 | January 9, 2003 | Japuntich et al. |
20040040562 | March 4, 2004 | Brunell |
Patent History
Patent number: D546942
Type: Grant
Filed: Apr 1, 2004
Date of Patent: Jul 17, 2007
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Andrew M. Taylor (Darlington)
Primary Examiner: Ian Simmons
Assistant Examiner: Christopher Lee
Attorney: Karl G Hanson
Application Number: 29/202,572
Type: Grant
Filed: Apr 1, 2004
Date of Patent: Jul 17, 2007
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Andrew M. Taylor (Darlington)
Primary Examiner: Ian Simmons
Assistant Examiner: Christopher Lee
Attorney: Karl G Hanson
Application Number: 29/202,572
Classifications
Current U.S. Class:
Regulator Or Valve (D24/110.6)