Face mask
Description
FIG. 1 is a top plan view of a face mask showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a side elevational view thereof, the opposite side view being a mirror image of that shown; and
FIG. 6 is a cross sectional view thereof taken along the line 6--6 of FIG. 2.
The broken line showing of a cushion in combination with the faceplate is for illustrative purposes only and forms no part of the claimed design.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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Patent History
Patent number: D323908
Type: Grant
Filed: Nov 9, 1989
Date of Patent: Feb 11, 1992
Assignee: Smith Industries Medical Systems, Inc. (Keene, NH)
Inventors: William H. Hollister (Nelson, NH), Cary D. Carruthers (Fitzwilliam, NH)
Primary Examiner: Kay H. Chin
Attorneys: Linda M. Buckley, Sewall P. Bronstein
Application Number: 7/435,325
Type: Grant
Filed: Nov 9, 1989
Date of Patent: Feb 11, 1992
Assignee: Smith Industries Medical Systems, Inc. (Keene, NH)
Inventors: William H. Hollister (Nelson, NH), Cary D. Carruthers (Fitzwilliam, NH)
Primary Examiner: Kay H. Chin
Attorneys: Linda M. Buckley, Sewall P. Bronstein
Application Number: 7/435,325
Classifications
Current U.S. Class:
D29/7