|Publication number||USD189957 S|
|Publication date||Mar 21, 1961|
|Filing date||Oct 12, 1960|
|Publication number||US D189957 S, US D189957S, US-S-D189957, USD189957 S, USD189957S|
|Inventors||John R. Ehefson|
|Export Citation||BiBTeX, EndNote, RefMan|
|External Links: USPTO, USPTO Assignment, Espacenet|
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