Plastic sheet material
US D187362 S
Description (OCR text may contain errors)
United States Patent ()ffie Des. 187,362 Patented Mar. 1, 1960 PLASTIC SHEET MATERIAL John R. Ellefson, Newburgh, N.Y., assignor to E. I. du Pont de Nemours and Company, Wilmington, Del., a
corporation of Delaware Application November 13, 1958, Serial No. 53,361
Term of patent 14 years (Cl. D87-3) FI G. 1
Figure 1 is a plan view of the plastic sheet material showing my new design.
Figure 2 is an enlarged portion of the design shown in Figure 1. i
. Figure 3 is a cross sectional view taken on line 3-3 of Figure 2.
The new design is characterized by widely spaced annular dimple-like bas-relief po'rtions enclosing alternate ridges and valleys on a background of fine grained substantially parallel striations.
The ornamental design for a plastic sheet material, substantially as shown and described.'
7 References Cited in the file of this patent UNITED STATES PATENTS D. 16,618 OConnor Apr. 13, 1886 D. 124,278 Sokoloff Dec. 24,- 1940 D. 179,747 Sylvester et a1 Feb. 19, 1957