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The ornamental design for a chair base, as shown and described. |
FIG. 1 is a perspective view of a chair base, showing our new design, the broken lines are for illustrative purposes only;
FIG. 2 is a right side elevational view of the chair base;
FIG. 3 is a top plan view of the chair base;
FIG. 4 is a bottom plan view of the chair base;
FIG. 5 is a left side elevational view of the chair base;
FIG. 6 is a front elevational view of the chair base; and,
FIG. 7 is a rear elevational view of the chair base.
Litewka, Jack, Grahl, Fredrich W.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jan 26 1989 | GRAHL, FREDRICH W | GRAHL INDUSTRIES, INC , A CORP OF MICHIGAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005037 | /0825 | |
Jan 28 1989 | LITEWKA, JACK | GRAHL INDUSTRIES, INC , A CORP OF MICHIGAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005037 | /0825 | |
Feb 02 1989 | Grahl Industries, Inc. | (assignment on the face of the patent) | / |
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