US D1,068,055 S
Ventilation fan
Ko-Neng Huang, Taoyuan (TW); Yu-Hsiang Huang, Taoyuan (TW); and Yen-Lin Chen, Taoyuan (TW)
Assigned to Delta Electronics, Inc., Taoyuan (TW)
Filed by Delta Electronics, Inc., Taoyuan (TW)
Filed on Sep. 7, 2021, as Appl. No. 29/806,876.
Term of patent 15 Years
LOC (15) Cl. 23 - 04
U.S. Cl. D23—385
OG exemplary drawing
 
The ornamental design for a ventilation fan as shown and described.