USD306484SExpiredUtility
Hydroscope
Individually held — no corporate assignee on recordPriority: Jun 17, 1987Filed: Jun 17, 1987Granted: Mar 6, 1990
Est. expiryJun 17, 2007(expired)· nominal 20-yr term from priority
Inventors:Elmer G. Olson
6
PatentIndex Score
0
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a hydroscope, as shown and described.
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