Filter mask

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Description

FIG. 1 is a front view of the filter mask, the rear view being a mirror image thereof;

FIG. 2 is a top view of the filter mask;

FIG. 3 is a bottom view of the filter mask;

FIG. 4 is a left side view of the filter mask; and,

FIG. 5 is a right side view of the filter mask.

Referenced Cited
U.S. Patent Documents
1292095 January 1919 Schwartz
4195629 April 1, 1980 Halford
5701892 December 30, 1997 Bledstein
Patent History
Patent number: D414862
Type: Grant
Filed: Sep 3, 1997
Date of Patent: Oct 5, 1999
Assignee: Cabot Safety Intermediate Corporation (Newark, DE)
Inventors: James Hall (Lincoln, RI), Keith Fecteau (Wilbraham, MA)
Primary Examiner: Stella Reid
Assistant Examiner: I Simmons
Law Firm: Cantor Colburn LLP
Application Number: 0/75,609
Classifications
Current U.S. Class: D24/1101
International Classification: 2902;