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Publication numberUSD189902 S
Publication typeGrant
Publication dateMar 14, 1961
Publication numberUS D189902 S, US D189902S, US-S-D189902, USD189902 S, USD189902S
InventorsJohn R. Ellefson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Plastic sheet material
US D189902 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Ofi Des. 189,902


Patented Mar. 14, 1961 PLASTIC SHEET MATERIAL John R. Ellefson, Kennett Square, Pa., assignor to E. I. du Pont de Nemours and Company, Wilmington, Del.,

a corporation of Delaware Filed Oct. 12, 1960, Ser. N0. 62,460

Term of patent 14 years (Cl. D873) Figure 1 is a plan view of a plastic sheet material showing my new design.

Figure 2 is an enlarged portion of the design shown in Figure 1.

I claim:

The ornamental design for a plastic sheet material, substantially as shown.

References Cited in the file of this patent D. 100,613 D. 108,943 D. 117,548 D. 187,362

UNITED STATES PATENTS Burgess Aug. 4, 1936 Hafner Mar. 22, 1938 Feldman Nov. 7, 1939 Ellefson Mar. 1, 1960