Portable backup power box of electronic cigarette
Claims
The ornamental design for a portable backup power box of electronic cigarette, as shown and described.
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Type: Grant
Filed: Sep 11, 2009
Date of Patent: Mar 20, 2012
Inventor: Zongwen Wu (Shenzhen)
Primary Examiner: Rosemary K Tarcza
Attorney: WPAT, P.C.
Application Number: 29/343,350