Oxygen concentrator

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Description

FIG. 1 is a top perspective view of an oxygen concentrator, showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a side view thereof, opposite that shown in FIG. 3;

FIG. 5 is a top thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a rear view thereof.

Claims

The ornamental design for an oxygen concentrator, as shown and described.

Referenced Cited
U.S. Patent Documents
4545790 October 8, 1985 Miller et al.
D284026 May 27, 1986 McCombs
D284695 July 15, 1986 McCombs
D329288 September 8, 1992 Miller et al.
D412577 August 3, 1999 Mickelson et al.
6212904 April 10, 2001 Arkharov et al.
D471982 March 18, 2003 Cheng
Patent History
Patent number: D490155
Type: Grant
Filed: Jun 4, 2003
Date of Patent: May 18, 2004
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka)
Inventor: Minoru Nakamura (Otsu)
Primary Examiner: Stella Reid
Attorney, Agent or Law Firm: Brinks Hofer Gilson & Lione
Application Number: 29/183,041
Classifications
Current U.S. Class: Pulmonary (38) (D24/164)
International Classification: 2401;