USD448312SExpiredUtility
Sand glass
Priority: Jul 6, 2000Filed: Jul 6, 2000Granted: Sep 25, 2001
Est. expiryJul 6, 2020(expired)· nominal 20-yr term from priority
Inventors:Robert Wu
38
PatentIndex Score
3
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2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a sand glass, as shown and described.
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