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Publication numberUSD659821 S1
Publication typeGrant
Application numberUS 29/343,750
Publication dateMay 15, 2012
Filing dateSep 18, 2009
Priority dateSep 18, 2009
Also published asCA134542S
Publication number29343750, 343750, US D659821 S1, US D659821S1, US-S1-D659821, USD659821 S1, USD659821S1
InventorsScott A. Spoo, Dean R. Duffy
Original Assignee3M Innovative Properties Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Triangular bond pattern on a personal respiratory protection mask
US D659821 S1
Abstract  available in
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  1. The ornamental design for a triangular bond pattern on a personal respiratory protection mask, as shown and described.

FIG. 1 is a perspective view of the new design for a triangular bond pattern on a personal respiratory protection mask in unfolded condition;

FIG. 2 is a front view thereof;

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

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a rear view thereof;

FIG. 9 is a perspective view showing the new design in a folded condition; and,

FIG. 10 is a left-side view, showing the new design in the folded condition.

The phantom line showing forms no part of the claimed design, the dot-dash line meeting the solid lines shows the boundary of the claimed design, and the shading is provided to illustrate contour only and is not an indication of texture, gloss, etc.

Non-Patent Citations
1Guangzhou Weini K810C Mask product literature obtained from internet on May 4, 2010 (
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
WO2015031067A1Aug 14, 2014Mar 5, 20153M Innovative Properties CompanyFiltering face-piece respirator having nose cushioning member
U.S. ClassificationD24/110.1