USD657112SActiveUtility

Rig structure

13
Individually held — no corporate assignee on recordPriority: Mar 29, 2011Filed: Jun 6, 2011Granted: Apr 3, 2012
Est. expiryMar 29, 2031(~4.7 yrs left)· nominal 20-yr term from priority
Inventors:Bui V. Dao
13
PatentIndex Score
2
Cited by
12
References
1
Claims

Claims

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

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