USD612954SActiveUtility

Helical pier

60
Assignee: MAGNUM PIERING INCPriority: Oct 27, 2008Filed: Oct 27, 2008Granted: Mar 30, 2010
Est. expiryOct 27, 2028(~2.2 yrs left)· nominal 20-yr term from priority
Inventors:Howard A. Perko
60
PatentIndex Score
10
Cited by
28
References
1
Claims

Claims

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

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