Oxygen concentrator

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a top perspective view of an oxygen concentrator of the present invention;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a first side view thereof;

FIG. 6 is a second side 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
D273717 May 1, 1984 McCombs
4545790 October 8, 1985 Miller et al.
D284026 May 27, 1986 McCombs
D284695 July 15, 1986 McCombs
D287051 December 2, 1986 Perkins et al.
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
Foreign Patent Documents
D907440 September 1994 JP
D907443 September 1994 JP
D1114758 July 2001 JP
D1185492 September 2003 JP
Patent History
Patent number: D513074
Type: Grant
Filed: Mar 8, 2004
Date of Patent: Dec 20, 2005
Assignee: Matsushita Electric Industrial Co., Ltd. (Osaka)
Inventors: Minoru Nakamura (Otsu), Osamu Kondo (Ibaraki)
Primary Examiner: Ian Simmons
Assistant Examiner: Daniel Yu
Attorney: Brinks Hofer Gilson & Lione
Application Number: 29/200,992
Classifications
Current U.S. Class: Pulmonary (38) (D24/164)