USD510644SExpiredUtility

Protective helmet

Assignee: NP AEROSPACE LTDPriority: Sep 5, 2003Filed: Mar 1, 2004Granted: Oct 11, 2005

Est. expirySep 5, 2023(expired)· nominal 20-yr term from priority

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Claims

exact text as granted — not AI-modified

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

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