Wringer sponge mop head

The ornamental design for a wringer sponge mop head, as shown and described .

FIG. 1 is a perspective view of a wringer sponge mop head in accordance with the present invention;

FIG. 2 is a front view;

FIG. 3 is a top view;

FIG. 4 is a left-side view, the right-side view being a mirror image thereof;

FIG. 5 is a back view; and,

FIG. 6 is a bottom view.

Patent	Priority	Assignee	Title
11930977,	May 03 2021	The Libman Company	Cleaning system
6892415,	Mar 28 2003	LIBMAN COMPANY, THE	Mop with attached scrubber
7225495,	Mar 28 2003	The Libman Company	Mop with attached scrubber
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D446897,	Mar 23 2000	Freudenberg Household Products LP	Sponge mop wringer
D505235,	May 22 2003	LIBMAN COMPANY, THE	Mop
D507855,	May 22 2003	LIBMAN COMPANY, THE	Mop
D520698,	May 22 2003	LIBMAN COMPANY, THE	Mop
D530049,	Mar 16 2004	The Libman Company	Sponge mop head
D548908,	Nov 04 2004	The Libman Company	Mop head
D661040,	Jul 26 2011	The Libman Company	Mop head

Patent	Priority	Assignee	Title
2794998,
2984851,
3014230,
3030648,
3483583,
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D336699,	Jul 02 1990	Rubbermaid Incorporated	Sponge mop
D358244,	Jul 20 1993	Freudenberg Household Products LP	Sponge mop with composite curved wringer plate

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Jun 17 1997		The Libman Company	(assignment on the face of the patent)
Sep 01 1997	BERTI, ENZO	LIBMAN COMPANY, THE	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	008762	0276	pdf

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