Portable liquid oxygen unit

- RIC Investments, LLC
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Description

FIG. 1 is a front perspective view of an embodiment of a portable liquid oxygen unit according to our new design;

FIG. 2 is a front elevational view of the portable liquid oxygen unit shown in FIG. 1;

FIG. 3 is a rear elevational view of the portable liquid oxygen unit shown in FIG. 1;

FIG. 4 is a right side elevational view of the portable liquid oxygen unit shown in FIG. 1;

FIG. 5 is a left side elevational view of the portable liquid oxygen unit shown in FIG. 1;

FIG. 6 is a top plan view of the portable liquid oxygen unit shown in FIG. 1; and,

FIG. 7 is a bottom plan view of the portable liquid oxygen unit shown in FIG. 1.

The portions drawn in broken lines are shown for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a portable liquid oxygen unit, as shown and described.

Referenced Cited
U.S. Patent Documents
4625753 December 2, 1986 Gustafson
4956975 September 18, 1990 Gustafson
D437056 January 30, 2001 Remes et al.
6393846 May 28, 2002 Frye
D471982 March 18, 2003 Cheng
6575159 June 10, 2003 Frye et al.
6742517 June 1, 2004 Frye et al.
6843247 January 18, 2005 Frye et al.
D510437 October 4, 2005 Lang et al.
D513074 December 20, 2005 Nakamura et al.
D528212 September 12, 2006 Conway et al.
Other references
  • Wilson, “Portable Oxygen: A User's Perspective”, 2002, www.portableoxygen.org/liquido2.html.
  • Precision Medical, Inc., “User Manual EasyMate Liquid Oxygen System PM2200 Series”, 2006.
  • Nellcor Puritan Bennett Inc., “Helios H300 Personal Oxygen System Filling Guide”, 2003.
  • Caire Inc, “Stroller/Sprint Patient Operating Instructions”, 2006.
Patent History
Patent number: D572365
Type: Grant
Filed: Jan 31, 2007
Date of Patent: Jul 1, 2008
Assignee: RIC Investments, LLC (Wilmington, DE)
Inventors: Tom Bonnell (Export, PA), Wendell Wilson (Marietta, GA)
Primary Examiner: Louis S Zarfas
Assistant Examiner: Anhdao Doan
Attorney: Michael W. Haas
Application Number: 29/272,036
Classifications
Current U.S. Class: Pulmonary (38) (D24/164)