Protective helmet

Details Protective helmet Protective helmet

1999-08-16

2003-03-11

McInroy, Ruth (Department: 2914)

Equipment for safety, protection, and rescue

Body restraint or protective covering

Cranial

Design Patent

active

D0471673

CLAIM:
The ornamental design for a protective helmet, as shown and described.

REFERENCES:
patent: D295880 (1988-05-01), Stokey et al.
patent: D385063 (1997-10-01), Anderson
patent: D398297 (1998-09-01), Leifer
patent: D402147 (1998-12-01), Scarborough
patent: D417754 (1999-12-01), Berger et al.

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