Respirator facemask
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Description
FIG. 1 is a perspective view of a first embodiment of a respirator facemask according to the present invention;
FIG. 2 is a front view of the respirator facemask illustrated in FIG. 1;
FIG. 3 is a right side view of the respirator facemask illustrated in FIG. 1, the left side view being the mirror image thereof;
FIG. 4 is a rear view of the respirator facemask illustrated in FIG. 1;
FIG. 5 is a top plan view of the respirator facemask illustrated in FIG. 1; and,
FIG. 6 is a bottom plan view of the respirator facemask illustrated in FIG. 1.
The phantom line showing in FIGS. 1 through 6 is for illustrative purposes only and forms no part of the claimed design.
Claims
The ornamental design for a respirator facemask, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
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0 252 891 | January 1988 | EP |
- 3M™ Half and Full Facepiece Respirators product literature 70-0710-9082-6 (Jan. 2002).
Patent History
Patent number: D467656
Type: Grant
Filed: Jun 25, 2001
Date of Patent: Dec 24, 2002
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: William A. Mittelstadt (Woodbury, MN), David M. Castiglione (Hudson, WI), Casey L. Carlson (Edina, MN)
Primary Examiner: Ian Simmons
Attorney, Agent or Law Firms: Karl G. Hanson, Michaele Hakamaki
Application Number: 29/144,069
Type: Grant
Filed: Jun 25, 2001
Date of Patent: Dec 24, 2002
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: William A. Mittelstadt (Woodbury, MN), David M. Castiglione (Hudson, WI), Casey L. Carlson (Edina, MN)
Primary Examiner: Ian Simmons
Attorney, Agent or Law Firms: Karl G. Hanson, Michaele Hakamaki
Application Number: 29/144,069
Classifications