USD448454SExpiredUtility
Switch valve
Priority: Oct 19, 2000Filed: Oct 19, 2000Granted: Sep 25, 2001
Est. expiryOct 19, 2020(expired)· nominal 20-yr term from priority
Inventors:Hung-Lin Lai
67
PatentIndex Score
15
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedI claim the ornamental design for a switch valve, as shown and described.
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