USD285192SExpiredUtility

Underground conduit

72
Assignee: LOF PLASTICS INCPriority: Dec 5, 1983Filed: Dec 5, 1983Granted: Aug 19, 1986
Est. expiryDec 5, 2003(expired)· nominal 20-yr term from priority
Inventors:Charles E. HubbardDonald E. Berkemeier
72
PatentIndex Score
13
Cited by
7
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an underground conduit, as shown and described.

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