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The ornamental design for a sealing plug for a monitoring well, as shown described. |
FIG. 1 is a perspective view of a sealing plug for a monitoring well showing my 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; and,
FIG. 6 is a front elevational view thereof, the rear view being a mirror image.
Patent | Priority | Assignee | Title |
D351013, | Jan 15 1992 | Cherne Industries Incorporated | Mechanical inspection and sealing plug for a monitoring well |
D683435, | Sep 13 2010 | VOIL TECH, L L C | Plug |
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 16 1989 | PETTESCH, MARTIN C | UNIVERSAL VALVE COMPANY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005117 | /0859 | |
Aug 28 1989 | Universal Valve Company, Inc. | (assignment on the face of the patent) | / |
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