USD327759SExpiredUtility
Spiral conveyer unit
Individually held — no corporate assignee on recordPriority: Jan 26, 1990Filed: Jan 26, 1990Granted: Jul 7, 1992
Est. expiryJan 26, 2010(expired)· nominal 20-yr term from priority
Inventors:Curtis S. Tarlton
46
PatentIndex Score
7
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a spiral conveyer unit, as shown and described.
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