USD340176SExpiredUtility

Friction rock stabilizer

27
Individually held — no corporate assignee on recordPriority: Dec 9, 1991Filed: Dec 9, 1991Granted: Oct 12, 1993
Est. expiryDec 9, 2011(expired)· nominal 20-yr term from priority
Inventors:Thomas J. Landsberg
27
PatentIndex Score
2
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a friction rock stabilizer, as shown and described.

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