USD828529SActiveUtility
Air purifier
Assignee: NINGBO ZHEKAI ELECTRIC CO LTDPriority: Dec 21, 2017Filed: Dec 21, 2017Granted: Sep 11, 2018
Est. expiryDec 21, 2037(~11.3 yrs left)· nominal 20-yr term from priority
Inventors:Hairong Hu
54
PatentIndex Score
9
Cited by
14
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for an air purifier, as shown and described.Join the waitlist — get patent alerts
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