Extension ringing console apparatus for a telephone set

The ornamental design for an extension ringing console apparatus for a telephone set, as shown and described.

FIG. 1 is a top plan view of an extension ringing console apparatus for a telephone set;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof; and,

FIG. 4 is a perspective view thereof.

The left side and rear form no part of the claimed design.

Patent	Priority	Assignee	Title
D388102,	Apr 16 1996	Kabushiki Kaisha Toshiba	Function extended unit for a telephone
D389156,	Apr 16 1996	Kabushiki Kaisha Toshiba	Extension calling unit for telephone
D421264,	Jan 23 1998	Mitel Networks Corporation	Telephone set

Patent	Priority	Assignee	Title
D259933,	Dec 18 1978	TIE/Communications, Inc.	Direct station selection console
D266086,	Sep 24 1979	TIE/Communications, Inc.	Direct station selection console
D271394,	Jan 21 1980	TIE/Communications, Inc.	Direct station selection console
D282745,	Jul 18 1983	TIE/Communications, Inc.	Direct station selection console
D300028,	Dec 17 1986	Nitsuko Corporation	Intercall console module device for a telephone set
D312461,	Dec 24 1988	Kabushiki Kaisha Toshiba	Inter-call device for telephone sets
D318660,	Jun 23 1988	IPC INFORMATION SYSTEMS, LLC	Multi-line telephone module for a telephone control panel
D328300,	May 25 1990	Nitsuko Corporation	Extension ringing console apparatus for telephone sets
D334571,	Jul 12 1990	PLESTEL PTY LTD	Telephone casing for a direct station selection console

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Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Apr 17 1995	TOH, TADAMINE	Nitsuko Corporation	ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS	007458	0808	pdf
Apr 21 1995		Nitsuko Corporation	(assignment on the face of the patent)
Jan 21 1997	Zurn Industries, Inc	Bankers Trust Company	SECURITY AGREEMENT	008345	0366	pdf

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