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The ornamental design for a top portion of a protective respiratory cap, as shown and described. |
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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.
| Patent | Priority | Assignee | Title |
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| D469580, | Mar 10 1998 | 3M Innovative Properties Company | Red helmet respiratory protection device |
| D955058, | Jul 24 2020 | RPB SAFETY, LLC | Cap with duct |
| D959757, | Oct 23 2019 | SUNDSTRÖM SAFETY AKTIEBOLAG | Helmet liner |
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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) | / | |||
| May 26 1998 | BURNS, JAMES A | Minnesota Mining and Manufacturing Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009236 | /0625 | |
| Sep 29 1999 | Minnesota Mining and Manufacturing Company | 3M Innovative Properties Company | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010282 | /0156 |
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