IP Library › Granted Patent US 1,084,220
Granted Patent S1
US 1,084,220 · App. 29/977,771 · Granted Jul 15, 2025

Filter unit

Inventors: David P. Cooper (Dowagiac, MI); Mark C. Graff (Michigan City, IN); James C. L. Guarino (Kalamazoo, MI); Chad Rotter (Saugatuck, MI); Daniel Louis Sigmund (Golden, CO); Steven J. Kuehl (Sylva, NC); Joseph R. Peters (St. Joseph, MI); Justin Glasgow (Sulphur Springs, TX)
Assignee: Whirlpool Corporation
B01D35/30B01D15/30B01D2201/16B01D2201/302
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Quick Facts
Patent No.
US 1,084,220
App. No.
29/977,771
Granted
Jul 15, 2025
Kind
S1
Claims (1)

The ornamental design for a filter unit as shown and described.

Continuity (3)
Continuation 29890942 · Apr 28, 2023
Continuation 18308305 · Apr 27, 2023
Continuation PCTIB2022054007 · Apr 29, 2022
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