USD403974SExpiredUtility

Drinking water purification system monitoring device

60
Assignee: HSU CHAO FOUPriority: Jan 6, 1997Filed: Jan 6, 1997Granted: Jan 12, 1999
Est. expiryJan 6, 2017(expired)· nominal 20-yr term from priority
Inventors:Chao Fou Hsu
60
PatentIndex Score
11
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a drinking water purification system monitoring device, as shown.

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