USD331137SExpiredUtility
Boat boarding ramp
Individually held — no corporate assignee on recordPriority: Jun 25, 1990Filed: Jun 25, 1990Granted: Nov 17, 1992
Est. expiryJun 25, 2010(expired)· nominal 20-yr term from priority
Inventors:Frederick E. Delaura
22
PatentIndex Score
4
Cited by
7
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a boat boarding ramp, as shown and described.
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