USD457230SExpiredUtility

Air purifier

79
Assignee: HUNG HSING ELEC CO LTDPriority: Jun 26, 2001Filed: Jun 26, 2001Granted: May 14, 2002
Est. expiryJun 26, 2021(expired)· nominal 20-yr term from priority
Inventors:Ping Huang
79
PatentIndex Score
27
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an air purifier, as shown and described.

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