Portable oxygen concentrator
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FIG. 1 is a right perspective view of the portable oxygen concentrator of the present design;
FIG. 2 is a front view of the portable oxygen concentrator of the present design;
FIG. 3 is a rear view of the portable oxygen concentrator of the present design;
FIG. 4 is a right side view of the portable oxygen concentrator of the present design;
FIG. 5 is a left side view of the portable oxygen concentrator of the present design;
FIG. 6 is a top view of the portable oxygen concentrator of the present design; and,
FIG. 7 is a bottom view of the portable oxygen concentrator of the present design.
The broken lines showing additional features of the portable oxygen concentrator in FIGS. 1-7 are for illustrative purposes only and form no part of the claimed design.
Claims
The ornamental design for a portable oxygen concentrator, as shown and described.
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Type: Grant
Filed: Mar 23, 2005
Date of Patent: Sep 12, 2006
Assignee: Inogen, Inc. (Goleta, CA)
Inventors: Scott Conway (Yorba Linda, CA), Rex O. Bare (Lake Forest, CA)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Daniel Yu
Attorney: Knobbe Martens Olson & Bear, LLP
Application Number: 29/226,193
