Protective helmet

Details Protective helmet Protective helmet

2003-09-02

2004-11-30

McInroy, Ruth (Department: 2914)

Equipment for safety, protection, and rescue

Body restraint or protective covering

Face, mouth, or ear

Design Patent

active

D0499214

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

REFERENCES:
patent: D306363 (1990-02-01), Stackhouse et al.
patent: D349362 (1994-08-01), Russell
patent: D354588 (1995-01-01), Russell
patent: D354589 (1995-01-01), Russell
patent: D361160 (1995-08-01), Russell
patent: D362086 (1995-09-01), Russell
patent: D375583 (1996-11-01), Landis et al.
patent: D458713 (2002-06-01), Cheng
patent: 6536045 (2003-03-01), Wilson et al.
patent: 6591424 (2003-07-01), Wang-Lee

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