Fan filter unit
Latest HITACHI KOUSAI ELECTRIC INC. Patents:
Description
The broken lines shown in the drawings represent portions of the fan filter unit that form no part of the claimed design.
Claims
I claim 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: D786418
Type: Grant
Filed: Nov 25, 2014
Date of Patent: May 9, 2017
Assignee: HITACHI KOUSAI ELECTRIC INC. (Tokyo)
Inventor: Makoto Hirano (Toyama)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Janice Hallmark
Application Number: 29/510,078
Type: Grant
Filed: Nov 25, 2014
Date of Patent: May 9, 2017
Assignee: HITACHI KOUSAI ELECTRIC INC. (Tokyo)
Inventor: Makoto Hirano (Toyama)
Primary Examiner: Susan Bennett Hattan
Assistant Examiner: Janice Hallmark
Application Number: 29/510,078
Classifications
Current U.S. Class:
Fan Or Ventilator (D23/370)