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			 The ornamental design for a showerhead filter cartridge, as shown and described. 
			  
			  
			  
			  
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Those portions of the Figures shown in broken lines or dashed lines are included for environmental purposes only and form no part of the claimed design.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jun 22 2016 | Waxman Consumer Products Group Inc. | (assignment on the face of the patent) | / | |||
| Jun 24 2016 | SHARRATT, JASON A | WAXMAN CONSUMER PRODUCTS GROUP INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 039027 | /0023 | |
| Oct 30 2018 | WAXMAN INDUSTRIES, INC | The Huntington National Bank | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 059443 | /0668 | |
| Oct 30 2018 | WAXMAN USA, INC | The Huntington National Bank | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 059443 | /0668 | |
| Oct 30 2018 | WAXMAN INDUSTRIAL GROUP, INC | The Huntington National Bank | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 059443 | /0668 | |
| Oct 30 2018 | WAXMAN CONSUMER PRODUCTS GROUP, INC | The Huntington National Bank | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 059443 | /0668 | |
| Oct 30 2018 | LEAKSMART, INC | The Huntington National Bank | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 059443 | /0668 | |
| Mar 31 2022 | WAXMAN CONSUMER PRODUCTS GROUP INC | Homewerks Worldwide, LLC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 059961 | /0624 | |
| Mar 31 2022 | The Huntington National Bank | WAXMAN CONSUMER PRODUCTS GROUP INC | RELEASE BY SECURED PARTY SEE DOCUMENT FOR DETAILS | 059473 | /0058 | 
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