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The ornamental design for a portable oxygen therapy unit, as shown and described. |
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FIG. 1 is a front elevational view of a portable oxygen therapy unit showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a rear elevational view thereof.
Perkins, Warren E., Novak, Mark T.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 12 1983 | PERKINS, WARREN E | CRYO2 CORPORATION, A FLA CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004182 | /0980 | |
| Sep 12 1983 | NOVAK, MARK T | CRYO2 CORPORATION, A FLA CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 004182 | /0980 | |
| Oct 06 1983 | CRYO2 Corporation | (assignment on the face of the patent) | / | |||
| Jul 05 1984 | CRYO 2 CORPORATION | STATE STREET BANK AND TRUST COMPANY, 225 FRANKLIN ST , BOSTON, MA 02110 A MA TRUST COMPANY | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 004286 | /0429 | |
| Dec 26 1989 | CURRENT MEDICAL TECHNOLOGIES, INC | PULSAIR, INC | CHANGE OF NAME SEE RECORDS FOR DETAILS | 006838 | /0481 | |
| Jan 11 1994 | STATE STREET BANK & TRUST COMPANY | CURRENT MEDICAL TECHNOLOGIES, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006838 | /0489 | |
| Jan 12 1994 | CRYO2 Corporation | STATE STREET BANK & TRUST COMPANY | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006838 | /0485 | |
| Jan 12 1994 | PULSAIR, INC | DEVILBISS HELATH CARE, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006847 | /0323 | |
| Jun 27 1997 | DEVILBISS HEALTH CARE, INC | Sunrise Medical HHG Inc | MERGER SEE DOCUMENT FOR DETAILS | 008766 | /0678 |
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