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The ornamental design for a collapsible radon montior, as shown and described. |
FIG. 1 is a top and front perspective view of a collapsible radon monitor showing my new design, shown in an expanded position;
FIG. 2 is a top and front perspective view, shown in a collapsed position;
FIG. 3 is a front elevational view, shown in an expanded position;
FIG. 4 is a front elevational view, shown in a collapsed position;
FIG. 5 is a bottom plan view;
FIG. 6 is a top plan view; and
FIG. 7 is a left side elevational view thereof, the right side elevational view being identical.
The front and rear are identical in appearance and the left and right sides are identical in appearance for both the expanded and collapsed canister positions.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 06 1989 | RAMSEY, ROBERT W JR | RAD ELEC INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005051 | /0471 | |
Mar 02 1989 | Rad Elec Inc. | (assignment on the face of the patent) | / |
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