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Publication numberUSD286213 S
Publication typeGrant
Application numberUS 06/493,649
Publication dateOct 14, 1986
Filing dateMay 11, 1983
Publication number06493649, 493649, US D286213 S, US D286213S, US-S-D286213, USD286213 S, USD286213S
InventorsRichard D. Maryyanek, Joseph Z. Zdrok
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dual filter respirator
US D286213 S
Abstract  available in
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  1. The original design for a dual filter respirator, as shown and described.

FIG. 1 is a front elevational view of the dual filter respirator embodying our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side view thereof, the opposite side being of substantially the same appearance;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

Non-Patent Citations
1New Equipment Digest (vol. 48, No. 2, Feb. 1983) Scientific Library Call No. TA/401/.N45 (p. 88: Lightweight Respirator).
U.S. ClassificationD24/110.1