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The ornamental design for a room air filter, as shown and described. |
FIG. 1 is a top, front and side perspective view of a room air filter, showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a side elevational view thereof, the opposite side being a mirror image of that shown; and,
FIG. 6 is a rear elevational view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 18 1992 | HAVRILLA, GEORGE S | CENTERCORE, INC A CORP OF DELAWARE | ASSIGNMENT OF ASSIGNORS INTEREST | 006190 | /0053 |
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