USD470570SExpiredUtility

Topping valve

60
Priority: Dec 4, 2001Filed: Dec 4, 2001Granted: Feb 18, 2003
Est. expiryDec 4, 2021(expired)· nominal 20-yr term from priority
Inventors:Lloyd G. Wass
60
PatentIndex Score
11
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a topping valve, as shown and described herein.

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