USD256811SExpiredUtility
Marble raceway
Individually held — no corporate assignee on recordPriority: Oct 7, 1977Filed: Oct 7, 1977Granted: Sep 9, 1980
Est. expiryOct 7, 1997(expired)· nominal 20-yr term from priority
Inventors:Raymond Crawford
49
PatentIndex Score
6
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an marble raceway, as shown and described.
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