USD494282SExpiredUtility
Door threshold
Priority: Aug 28, 2003Filed: Aug 28, 2003Granted: Aug 10, 2004
Est. expiryAug 28, 2023(expired)· nominal 20-yr term from priority
Inventors:Gregory Fred Sperbeck
22
PatentIndex Score
4
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an door threshold, as shown.
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