|
The ornamental design for an oxygen concentrator, as shown.
|
FIG. 1 is a front-right-top perspective view of an oxygen concentrator, showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Patent | Priority | Assignee | Title |
D835290, | Jul 21 2017 | Medical oxygen concentrator | |
D854691, | May 22 2018 | NITERRA CO , LTD | Medical oxygen concentrator |
D861874, | May 15 2018 | NITERRA CO , LTD | Medical oxygen concentrator |
Patent | Priority | Assignee | Title |
4378982, | Aug 28 1981 | JOHN BUNN COMPANY, THE | Compact oxygen concentrator |
4502873, | Jul 27 1982 | PROTO-MED, INC | Method and apparatus for concentrating oxygen |
4545790, | Aug 11 1983 | Bio-Care, Incorporated | Oxygen concentrator |
6212904, | Nov 01 1999 | Respironics, Inc | Liquid oxygen production |
D284026, | Jun 07 1985 | JOHN BUNN COMPANY, THE | Oxygen concentrator |
D284695, | Nov 01 1983 | JOHN BUNN COMPANY, THE | Oxygen concentrator |
D329288, | Nov 15 1989 | Puritan-Bennett Corporation | Cabinet for an oxygen concentrator |
D412577, | Oct 06 1997 | COBHAM MISSION SYSTEMS DAVENPORT LSS INC | Oxygen concentrator used in home health care |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |