Ventilation fan
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Description
The broken lines illustrate portion of the ventilation fan and form no part of the claimed design. The broken line rectangle surrounding the area A in
Claims
The ornamental design for a ventilation fan, as shown and described.
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Patent History
Patent number: D956943
Type: Grant
Filed: Apr 16, 2020
Date of Patent: Jul 5, 2022
Assignee: DELTA ELECTRONICS, INC. (Taoyuan)
Inventors: Yu-Hsiang Huang (Taoyuan), Chih-Hua Lin (Taoyuan), Yan-Lin Chen (Taoyuan), Yuan-Chuan Liu (Taoyuan)
Primary Examiner: Sharon S Oum
Application Number: 29/731,584
Type: Grant
Filed: Apr 16, 2020
Date of Patent: Jul 5, 2022
Assignee: DELTA ELECTRONICS, INC. (Taoyuan)
Inventors: Yu-Hsiang Huang (Taoyuan), Chih-Hua Lin (Taoyuan), Yan-Lin Chen (Taoyuan), Yuan-Chuan Liu (Taoyuan)
Primary Examiner: Sharon S Oum
Application Number: 29/731,584
Classifications
Current U.S. Class:
Exhaust Type (D23/371)