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Publication numberUSD189957 S
Publication typeGrant
Publication dateMar 21, 1961
Filing dateOct 12, 1960
Publication numberUS D189957 S, US D189957S, US-S-D189957, USD189957 S, USD189957S
InventorsJohn R. Ehefson
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Plastic sheet material
US D189957 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Des. 189,957

Patented Mar. 21, 1961 O 6 9 1 e n u I Gillinder Mar. 22, 1870 McLaughlin Jan. 17, 1911 Green July 22, 1958 Martin et a1.

Poisson References Cited in the file of this patent UNITED STATES PATENTS United States Patent Ofifice 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. No. 62,458

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

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

D. 41,098 D. 183,256 D. 188,161

I claim The ornamental design for a plastic sheet material substantially as shown. DI 189,178