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The ornamental design for a red helmet respiratory protection device, as shown and described.
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FIG. 1 is a perspective view of a red helmet respiratory protection device showing our new design, the parallel lines shown in all views representing the color red;
FIG. 2 is a front view thereof;
FIG. 3 is a top elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a rear elevational view; and,
FIG. 6 is a side elevational view thereof, the opposite side being a mirror image.
The vertical line shading shown in FIGS. 1-3, 5, and 6 represents the color red.
The portion of the design that is shown in phantom lines in all views is for illustrative purposes only and forms no part of the claimed design.
Schlaefer, David R., Sáez, M. Antonia
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Mar 10 1998 | 3M Innovative Properties Company | (assignment on the face of the patent) | / | |||
Jul 07 1998 | SCHLAEFER, DAVID R | Minnesota Mining and Manufacturing Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009759 | /0251 | |
Jul 07 1998 | SAEZ, M ANTONIA | Minnesota Mining and Manufacturing Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009759 | /0251 | |
Sep 24 2002 | 3M COMPANY FORMERLY MINNESOTA MINING AND MANUFACTURING COMPANY A CORP OF DELAWARE | 3M Innovative Properties Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 013127 | /0707 |
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