USD480177SExpiredUtility

Back washing device

43
Assignee: PROCTER & GAMBLEPriority: Nov 28, 2000Filed: May 25, 2001Granted: Sep 30, 2003
Est. expiryNov 28, 2020(expired)· nominal 20-yr term from priority
Inventors:Makoto IsonoHideto MaedaSatomi NakamuraTadayasu KogaChristopher David LeahyKentaro YamamotoKazuya Iwata
43
PatentIndex Score
5
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for back washing device, as shown and described.

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