USD664566SActiveUtility

Core barrel retracting case

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Assignee: DRENTH CHRISTOPHER LPriority: Oct 6, 2010Filed: Feb 2, 2011Granted: Jul 31, 2012
Est. expiryOct 6, 2030(~4.2 yrs left)· nominal 20-yr term from priority
Inventors:Christopher L. Drenth
60
PatentIndex Score
6
Cited by
94
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a core barrel retracting case, as shown and described.

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