Plastic sheet material
US D190946 S
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l ewh United States Patent 0 "ice PLASTIC SHEET MATERIAL John R. Ellefson, Kennett Square, Pa., amignor to E. I.
du Pont de Nemours and Company, Wilmington, Del., a corporation of Delaware Filed Oct. 12, 1960, Ser. N0. 62,467
Term of patent 14 years [Illa/L124 F IG 5 will! FIGURE 1 is a plan view of a plastic sheet material References Cited in the file of this patent showing my new design.
UNITED STATES PATENTS FIGURE 2 l d e t' nal t ke 1 line of 1 3 5 a n aongv D. 112,568 SkOlnlk Dec. 13, 1938 D. 187,322 Ellefson Feb. 23, 1960 Wunderlich June 9, 1931 OTHER REFERENCES Design, January 1954, page 13, leathercloth, middle of panel in bottom left hand corner.
FIGURE 3 is an enlarged sectional view taken along line 3-3 of FIGURE 1. 11308976 I claim:
The ornamental design for a plastic sheet material, substantially as shown.