USD257556SExpiredUtility
Ruler
Individually held — no corporate assignee on recordPriority: May 9, 1979Filed: May 9, 1979Granted: Nov 25, 1980
Est. expiryMay 9, 1999(expired)· nominal 20-yr term from priority
Inventors:Jerrell F. Fulton
62
PatentIndex Score
10
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a ruler, substantially as shown and described.
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