USD539382SExpiredUtility

Duo sewage treatment plant

36
Assignee: DONALD HUBBARD HPriority: Aug 31, 2005Filed: Aug 31, 2005Granted: Mar 27, 2007
Est. expiryAug 31, 2025(expired)· nominal 20-yr term from priority
Inventors:Hubbard H. DonaldGeorge E. Johnson
36
PatentIndex Score
3
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       We claim the ornamental design for the duo sewage treatment plant, as shown.

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