USD307780SExpiredUtility

Marble raceway

35
Individually held — no corporate assignee on recordPriority: Apr 18, 1988Filed: Apr 18, 1988Granted: May 8, 1990
Est. expiryApr 18, 2008(expired)· nominal 20-yr term from priority
Inventors:Gaylen D. Healzer
35
PatentIndex Score
4
Cited by
6
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a marble raceway, as shown and described.

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