Plastic sheet material
US D190790 S
Description (OCR text may contain errors)
United States Patent 0 ce Des-190,79"
Patented June 27, 1961 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 Filed June 27, 1960, Ser. No. 61,112
Term of patent 14 years (Cl. D87'3) F FIG. I
FIG. 5 In.
FIGURE 1 is a plan view of a plastic sheet material References Cited in the file of this patent showmg my f P- UNITED STATES PATENTS FIGURE 2 1s a sectional view taken on line 2--2 of F G 1 D. 110,641 Hess July 26, 1938 FIGURE 3 is a sectional view taken on line 3-3 of 187322 Ellefson 1960 FIGURE 1.
The ornamental design for a plastic sheet material, substantially as shown.