Air filter
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Description
The broken lines in the drawings show portions of the air filter that form no part of the claimed design.
Claims
The ornamental design for an air filter, as shown and described.
Referenced Cited
U.S. Patent Documents
D401684 | November 24, 1998 | Shelton |
D438214 | February 27, 2001 | Gieseke |
D471623 | March 11, 2003 | Gieseke |
D652496 | January 17, 2012 | Greenlees |
D713023 | September 9, 2014 | Chen |
D763426 | August 9, 2016 | Koch |
D770592 | November 1, 2016 | Schwartz |
D793544 | August 1, 2017 | Ramirez |
D808506 | January 23, 2018 | Koch |
D844103 | March 26, 2019 | Yoshita |
Patent History
Patent number: D897517
Type: Grant
Filed: Apr 25, 2018
Date of Patent: Sep 29, 2020
Assignee:
Inventors: Christopher Wolf (Brown Deer, WI), Eric B. Hudak (Sheboygan, WI), Michelle Formanek (Sheboygan, WI), Michael E. Smies (Waldo, WI)
Primary Examiner: Lakiya G Rogers
Assistant Examiner: John A Voytek
Application Number: 29/645,343
Type: Grant
Filed: Apr 25, 2018
Date of Patent: Sep 29, 2020
Assignee:
Inventors: Christopher Wolf (Brown Deer, WI), Eric B. Hudak (Sheboygan, WI), Michelle Formanek (Sheboygan, WI), Michael E. Smies (Waldo, WI)
Primary Examiner: Lakiya G Rogers
Assistant Examiner: John A Voytek
Application Number: 29/645,343
Classifications
Current U.S. Class:
Filter (D23/365)