USD492987SExpiredUtility
Three channel duct
Priority: Jan 31, 2003Filed: Jan 31, 2003Granted: Jul 13, 2004
Est. expiryJan 31, 2023(expired)· nominal 20-yr term from priority
Inventors:Felix L. Sorkin
39
PatentIndex Score
3
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedI claim the ornamental design for a three channel duct, as shown and described.
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