Filter
Description
Claims
The ornamental design for filter, as shown and described.
Referenced Cited
U.S. Patent Documents
| D383881 | September 16, 1997 | Gudmundsson |
| 6379412 | April 30, 2002 | Porterfield |
| 8172919 | May 8, 2012 | Ruiz |
| D679792 | April 9, 2013 | Hollingsworth |
| D862017 | October 1, 2019 | Dou |
| D900063 | October 27, 2020 | Park |
| 20200238211 | July 30, 2020 | Lee |
| 20200269175 | August 27, 2020 | Yang |
| 20200338487 | October 29, 2020 | Chuang |
| 20200346151 | November 5, 2020 | Zahaf |
| 20210086120 | March 25, 2021 | Burkhart-Day |
Patent History
Patent number: D938006
Type: Grant
Filed: Jan 22, 2020
Date of Patent: Dec 7, 2021
Inventor: Zhigang Du (Tianjin)
Primary Examiner: John A Voytek
Application Number: 29/721,702
Type: Grant
Filed: Jan 22, 2020
Date of Patent: Dec 7, 2021
Inventor: Zhigang Du (Tianjin)
Primary Examiner: John A Voytek
Application Number: 29/721,702
Classifications
Current U.S. Class:
Filter (D23/365)