USD491325SExpiredUtility
Multi-diameter pipeline cleaner or “pig”
Individually held — no corporate assignee on recordPriority: Jul 9, 2002Filed: Jul 9, 2002Granted: Jun 8, 2004
Est. expiryJul 9, 2022(expired)· nominal 20-yr term from priority
Inventors:Ronald E. Hawkins
54
PatentIndex Score
12
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for multi-diameter pipeline cleaner or “pig”, as shown and described.
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