Combined seat and backrest unit

The ornamental design for a combined "seat and backrest unit", substantially as shown.

FIG. 1 is a front and side perspective view of a combined seat, and backrest unit embodying my new design;

FIG. 2 is a back and side perspective view of the combined seat, and backrest unit of FIG. 1;

FIG. 3 is a side elevational view of the combined seat and backrest unit of FIGS. 1 and 2; and

FIG. 4 is a top plan view of the combined seat and backrest unit of FIGS. 1 through 3.

Patent	Priority	Assignee	Title
D269837,	Feb 09 1981	SUNLITE CASUAL FURNITURE, INC	Combined seat and backrest unit
D270414,	May 11 1979	KNOLL, INC	Combined seat and backrest for a chair
D281377,	Mar 15 1983		Chair
D344190,	Apr 24 1991	PRESS S P A	Office chair
D536186,	Sep 28 2005	Bombardier Recreational Products Inc.	Seat for a vehicle

Patent	Priority	Assignee	Title
3361472,
174472,
233720,
D248524,	Jun 02 1975	Global Upholstery Company Limited	Seating unit for a swivel chair
D253324,	Nov 07 1977	Camilo Muebles, Inc.	Seat

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
May 11 1979		Burd, Inc.	(assignment on the face of the patent)
Oct 01 1981	BURD, INC ,	CITICORP INDUSTRIAL CREDIT, INC	SECURITY INTEREST SEE DOCUMENT FOR DETAILS	003920	0195	pdf

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