USD520197SExpiredUtility

Vacuum cleaner

44
Assignee: WANG WEN-CHANGPriority: Nov 20, 2003Filed: May 18, 2004Granted: May 2, 2006
Est. expiryNov 20, 2023(expired)· nominal 20-yr term from priority
Inventors:Wen-Chang Wang
44
PatentIndex Score
5
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a vacuum cleaner, as shown and described.

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