Protective helmet

Details Protective helmet Protective helmet

2007-10-16

2007-10-16

McInroy, Ruth (Department: 2915)

Equipment for safety, protection, and rescue

Body restraint or protective covering

Cranial

Design Patent

active

29257286

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

REFERENCES:
patent: D437092 (2001-01-01), Ho
patent: D481172 (2003-10-01), Ho
patent: D495835 (2004-09-01), Ho
patent: D495836 (2004-09-01), Fang
patent: D516751 (2006-03-01), Ho
patent: D516752 (2006-03-01), Ho
patent: D517739 (2006-03-01), Ho
patent: D534691 (2007-01-01), Chen
patent: D536832 (2007-02-01), Ho
patent: D540490 (2007-04-01), Grepper et al.

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