Claims (1)
Claim 1 (Independent)
The ornamental design for a protective helmet as shown and described.
Full Description
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1. Protective helmet
2. Protective helmet
1 . 1 : Perspective
1 . 2 : Bottom
1 . 3 : Front
1 . 4 : Left
1 . 5 : Back
1 . 6 : Right
1 . 7 : Top
1 . 8 : Perspective
2 . 1 : Perspective
2 . 2 : Bottom
2 . 3 : Front
2 . 4 : Left
2 . 5 : Back
2 . 6 : Right
2 . 7 : Top
2 . 8 : Perspective
Citations
This patent cites (13)
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