USD904589SActiveUtility

Heat exchanger for water heater

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Assignee: NORITZ CORPPriority: Aug 22, 2019Filed: Aug 22, 2019Granted: Dec 8, 2020
Est. expiryAug 22, 2039(~13.1 yrs left)· nominal 20-yr term from priority
Inventors:Takeshi OohigashiMasaki KondoNorihide Wada
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PatentIndex Score
1
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Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a heat exchanger for water heater, as shown and described.

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