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The ornamental design for a protective helmet, as shown. |
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FIG. 1 is a front elevational view of a protective helmet showing our new design;
FIG. 2 is a side perspective view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a rear elevational view thereof.
Comstock, Scott P., Comstock, Kurt J.
| Patent | Priority | Assignee | Title |
| 6029283, | Feb 14 1997 | Helmet having improved safety features | |
| D460584, | May 07 2001 | Pabban Development, Inc. | Helmet with air flow rib structure |
| D565831, | Mar 19 2007 | Party hat | |
| D566379, | Jul 23 2007 | Party hat | |
| D671272, | Jan 28 2011 | D H ANDERSON HOLDINGS INC | Helmet |
| D672095, | Jan 28 2011 | D H ANDERSON HOLDINGS INC | Helmet |
| D691329, | May 04 2010 | D H ANDERSON HOLDINGS INC | Safety helmet |
| Patent | Priority | Assignee | Title |
| 213085, | |||
| D335366, | Jan 08 1991 | MELAS, INC | Helmet |
| D358004, | Jul 20 1993 | BRAVO HIGHLINE LLC | Safety helmet |
| D361407, | Sep 24 1993 | Safety helmet | |
| D367341, | Dec 01 1994 | BRAVO HIGHLINE LLC | Safety helmet |
| D367548, | Oct 04 1994 | Rider's helmet | |
| D371868, | Jun 15 1995 | BRAVO HIGHLINE LLC | Safety helmet |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 05 1996 | Scott P., Comstock | (assignment on the face of the patent) | / | |||
| Mar 05 1996 | Kurt J., Comstock | (assignment on the face of the patent) | / |
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