Parallel bond lines on a fibrous filtration face mask

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Description

FIG. 1 is a perspective view, showing the new design for parallel bond lines on a fibrous filtration face mask;

FIG. 2 is a front view thereof;

FIG. 3 is an enlarged expanded cross-sectional view thereof, taken along line 3-3 of FIG. 2;

FIG. 4 is a left-side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a perspective view that shows the new design for parallel bond lines on a fibrous filtration face mask with the mask in folded condition; and,

FIG. 9 is a left side view of the folded mask of FIG. 8, the right side view being a mirror image of the left side view.

The broken line showing forms no part of the claimed design.

Claims

The ornamental design for parallel bond lines on a fibrous filtration face mask, as shown and described.

Patent History
Patent number: D678507
Type: Grant
Filed: Oct 23, 2009
Date of Patent: Mar 19, 2013
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventor: Dean R. Duffy (Woodbury, MN)
Primary Examiner: Rashida Johnson
Application Number: 29/345,876
Classifications
Current U.S. Class: Mask (D24/110.1)