Filtration units
Description
The broken lines illustrating portions of the filtration units form no part of the claimed design.
Claims
The ornamental design for filtration units, as shown and described.
Referenced Cited
U.S. Patent Documents
Patent History
Patent number: D878533
Type: Grant
Filed: Jan 10, 2018
Date of Patent: Mar 17, 2020
Inventor: KAY GUNTHER GABRIEL (Cottbus)
Primary Examiner: Khawaja Anwar
Application Number: 35/505,469
Type: Grant
Filed: Jan 10, 2018
Date of Patent: Mar 17, 2020
Inventor: KAY GUNTHER GABRIEL (Cottbus)
Primary Examiner: Khawaja Anwar
Application Number: 35/505,469
Classifications
Current U.S. Class:
Filter (D23/365)