USD811580SActiveUtility

Unidirectional valve for face mask

44
Assignee: INNOSPARKS PTE LTDPriority: May 8, 2014Filed: Nov 5, 2014Granted: Feb 27, 2018
Est. expiryMay 8, 2034(~7.8 yrs left)· nominal 20-yr term from priority
Inventors:Ee Ho TangKwok Jiang SakWei-Liang Lee
44
PatentIndex Score
7
Cited by
20
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       We claim the ornamental design for a unidirectional valve for face mask, as shown and described.

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