USD549536SExpiredUtility

Drain plunger

34
Individually held — no corporate assignee on recordPriority: Dec 10, 2003Filed: Dec 10, 2003Granted: Aug 28, 2007
Est. expiryDec 10, 2023(expired)· nominal 20-yr term from priority
Inventors:Carlos R. SchoolcraftWilliam J. KraimerMichael Ernst
34
PatentIndex Score
3
Cited by
12
References
1
Claims

Claims

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

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