USD537583SExpiredUtility

Backpack cleaner

79
Assignee: SHOP VAC CORPPriority: Aug 25, 2005Filed: Aug 25, 2005Granted: Feb 27, 2007
Est. expiryAug 25, 2025(expired)· nominal 20-yr term from priority
Inventors:Robert L. Crevling, Jr.John GriffinCraig A. Seasholtz
79
PatentIndex Score
25
Cited by
28
References
1
Claims

Claims

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

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