USD553238SExpiredUtility

Duct seal

79
Assignee: EASTERN SHEET METALPriority: May 4, 2006Filed: May 4, 2006Granted: Oct 16, 2007
Est. expiryMay 4, 2026(expired)· nominal 20-yr term from priority
Inventors:Alf Haggkvist
79
PatentIndex Score
37
Cited by
46
References
1
Claims

Claims

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

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