USD906598SActiveUtility

Mask breather valve

67
Assignee: ZHANG WEINANPriority: Jan 15, 2020Filed: Apr 22, 2020Granted: Dec 29, 2020
Est. expiryJan 15, 2040(~13.5 yrs left)· nominal 20-yr term from priority
Inventors:Weinan Zhang
67
PatentIndex Score
4
Cited by
14
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a mask breather valve, as shown and described.

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