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The ornamental design for a portable oxygen reservoir, substantially as shown and described. |
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FIG. 1 is a front view of a portable oxygen reservoir showing our new design;
FIG. 2 is a top view thereof;
FIG. 3 is a bottom view thereof;
FIG. 4 is a rear view thereof; and
FIG. 5 is a side view thereof.
Cowley, John J., Hussey, Selby D.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 19 1983 | COWLEY, JOHN J | ERIE MANUFACTURING CO | ASSIGNMENT OF ASSIGNORS INTEREST | 004125 | /0802 | |
| Apr 19 1983 | HUSSEY, SELBY D | ERIE MANUFACTURING CO | ASSIGNMENT OF ASSIGNORS INTEREST | 004125 | /0802 | |
| Apr 29 1983 | Erie Manufacturing Co. | (assignment on the face of the patent) | / |
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