USD453905SExpiredUtility
pH meter
Priority: Mar 5, 2001Filed: Mar 5, 2001Granted: Feb 26, 2002
Est. expiryMar 5, 2021(expired)· nominal 20-yr term from priority
Inventors:Tony Cheng
55
PatentIndex Score
14
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a pH meter, as shown and described.
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