USD256488SExpiredUtility
Skateboard ramp
Individually held — no corporate assignee on recordPriority: Jan 10, 1978Filed: Jan 10, 1978Granted: Aug 19, 1980
Est. expiryJan 10, 1998(expired)· nominal 20-yr term from priority
Inventors:Douglas B. Firestone
63
PatentIndex Score
8
Cited by
1
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a skateboard ramp, as shown and described.
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