Protective helmet
Description
1. Protective helmet
Claims
The ornamental design for a protective helmet, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D846810
Type: Grant
Filed: Dec 19, 2017
Date of Patent: Apr 23, 2019
Inventor: Miha Akrapovic (Izola)
Primary Examiner: Richard E Chilcot
Application Number: 35/504,366
Type: Grant
Filed: Dec 19, 2017
Date of Patent: Apr 23, 2019
Inventor: Miha Akrapovic (Izola)
Primary Examiner: Richard E Chilcot
Application Number: 35/504,366
Classifications
Current U.S. Class:
And Transparent Eye Shield (D29/107)
