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Publication numberUSD420770 S
Publication typeGrant
Application numberUS 29/084,785
Publication dateFeb 15, 2000
Filing dateMar 10, 1998
Publication number084785, 29084785, US D420770 S, US D420770S, US-S-D420770, USD420770 S, USD420770S
InventorsJames A. Burns
Original Assignee3M Innovative Properties Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Top portion of a protective respiratory cap
US D420770 S
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  1. The ornamental design for a top portion of a protective respiratory cap, as shown and described.

FIG. 1 is a perspective view of a top portion of a protective respiratory cap showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof; and,

FIG. 6 is a left side elevational view thereof, the right side being a mirror image.

The portion of the drawings shown in phantom is for illustrative purposes only and is not intended to form part of the claimed design.

Non-Patent Citations
1Product Information: "AH29 Air Supplied Airstream," Airstream Anti Dust Helmet, Racal.
2Product Information: "Breathe Easy Plus," 1 BE1+Helmet System, Racal.
3Product information: "Cobra Powered Helmet Respirators," MSA.
4Product Information: "Pureflo Powered Respirators," Helmet Integrated Systems Ltd., 13 pages.
5Product Information: "The Dustmaster System," Arco.
6Product Information: Helmet product literature, Kasco, 7 pages.
U.S. ClassificationD29/122, D29/102