Filter
Description
The broken lines depict portions of the filter which form no part of the claimed design.
Claims
The ornamental design for a filter, as shown and described.
Referenced Cited
U.S. Patent Documents
| D366107 | January 9, 1996 | Shaffer |
| D481113 | October 21, 2003 | Groene |
| D557874 | December 18, 2007 | Dong |
| D614871 | May 4, 2010 | Tang |
| D660913 | May 29, 2012 | Podd |
| D727857 | April 28, 2015 | Acera |
| D733278 | June 30, 2015 | Newlin |
| D754315 | April 19, 2016 | Morin |
| D810908 | February 20, 2018 | Mork |
| D835918 | December 18, 2018 | Lattorre |
| D890317 | July 14, 2020 | Riley |
| D896362 | September 15, 2020 | Riley |
| 20200338487 | October 29, 2020 | Chuang |
Patent History
Patent number: D929557
Type: Grant
Filed: Jan 22, 2020
Date of Patent: Aug 31, 2021
Inventor: Zhigang Du (Tianjin)
Primary Examiner: John A Voytek
Application Number: 29/721,698
Type: Grant
Filed: Jan 22, 2020
Date of Patent: Aug 31, 2021
Inventor: Zhigang Du (Tianjin)
Primary Examiner: John A Voytek
Application Number: 29/721,698
Classifications
Current U.S. Class:
Filter (D23/365)