USD413009SExpiredUtility

Air cleaning hat

40
Assignee: YEH KUO-CHUNGPriority: Jun 22, 1998Filed: Jun 22, 1998Granted: Aug 24, 1999
Est. expiryJun 22, 2018(expired)· nominal 20-yr term from priority
Inventors:Kuo-Chung Yeh
40
PatentIndex Score
4
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air cleaning hat, as shown.

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