USD613881SActiveUtility

Helical pier with opposed external bars

56
Assignee: MAGNUM PIERING INCPriority: Oct 27, 2008Filed: Dec 3, 2009Granted: Apr 13, 2010
Est. expiryOct 27, 2028(~2.2 yrs left)· nominal 20-yr term from priority
Inventors:Howard A. Perko
56
PatentIndex Score
8
Cited by
28
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a helical pier with opposed external bars, as shown and described.

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