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The ornamental design for a portable adjustable back support, as shown and described. |
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FIG. 1 is a front perspective view of a portable adjustable back support showing my design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof.
Dean, Peter D. G., Troup, John D. G., Walkingshaw, James I., Wilkinson, John L.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 11 1985 | Medesign Limited | (assignment on the face of the patent) | / | |||
| Sep 07 1987 | TROUP, JOHN D G | Medesign Limited | ASSIGNMENT OF ASSIGNORS INTEREST | 004763 | /0069 | |
| Sep 07 1987 | WALKINGSHAW, JAMES I | Medesign Limited | ASSIGNMENT OF ASSIGNORS INTEREST | 004763 | /0069 | |
| Sep 07 1987 | DEAN, PETER D G | Medesign Limited | ASSIGNMENT OF ASSIGNORS INTEREST | 004763 | /0069 | |
| Sep 07 1987 | WILKINSON, JOHN L | Medesign Limited | ASSIGNMENT OF ASSIGNORS INTEREST | 004763 | /0069 |
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