Protective helmet

Details Protective helmet Protective helmet

2006-05-23

2006-05-23

McInroy, Ruth (Department: 2915)

Equipment for safety, protection, and rescue

Body restraint or protective covering

Cranial

Design Patent

active

D0521688

CLAIM:
We claim the ornamental design for a protective helmet, as shown and described.

REFERENCES:
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patent: D459837 (2002-07-01), Dupuis
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patent: 6622311 (2003-09-01), Diaz et al.
patent: 31 45 106 (1981-11-01), None
patent: 1 166 666 (2002-01-01), None

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