Cover ring

- Tokyo Electron Limited
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FIG. 1 is a front elevational view of a cover ring, showing our new design;

FIG. 2 is a right side elevational view thereof, the left side elevational view being a mirror image of the view shown;

FIG. 3 is a top plan view thereof, the bottom plan view being a mirror image of the side shown;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a cross-sectional view thereof taken along line 55 in FIG. 1; and,

FIG. 6 is a bottom and front side view thereof.


The ornamental design for a cover ring, as shown and described.

Referenced Cited
U.S. Patent Documents
5837058 November 17, 1998 Chen et al.
D404370 January 19, 1999 Kimura
D404372 January 19, 1999 Ishii
6068441 May 30, 2000 Raaijmakers et al.
6423175 July 23, 2002 Huang et al.
D491963 June 22, 2004 Doba
D494552 August 17, 2004 Tezuka et al.
D496008 September 14, 2004 Takahashi et al.
20050150452 July 14, 2005 Sen et al.
20070166819 July 19, 2007 Ghosh et al.
Foreign Patent Documents
3424903 October 1998 JP
1207599 June 2004 JP
1210213 June 2004 JP
Patent History
Patent number: D559993
Type: Grant
Filed: Jul 8, 2005
Date of Patent: Jan 15, 2008
Assignee: Tokyo Electron Limited (Tokyo)
Inventors: Keiichi Nagakubo (Nirasaki), Daiki Satoh (Nirasaki)
Primary Examiner: Robert A. Delehanty
Assistant Examiner: Mark Cavanna
Attorney: Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
Application Number: 29/233,656