Fan filter unit
Description
The broken lines shown in the drawings represent portions of the fan filter unit that form no part of the claimed design.
Claims
The ornamental design for a fan filter unit, as shown and described.
Referenced Cited
U.S. Patent Documents
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Patent History
Patent number: D786417
Type: Grant
Filed: Nov 25, 2014
Date of Patent: May 9, 2017
Assignee: HITACHI KOKUSAI ELECTRIC INC. (Tokyo)
Inventor: Makoto Hirano (Toyama)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Janice Hallmark
Application Number: 29/510,077
Type: Grant
Filed: Nov 25, 2014
Date of Patent: May 9, 2017
Assignee: HITACHI KOKUSAI ELECTRIC INC. (Tokyo)
Inventor: Makoto Hirano (Toyama)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Janice Hallmark
Application Number: 29/510,077
Classifications
Current U.S. Class:
Fan Or Ventilator (D23/370)