US D207487 S
Abstract available in
Claims available in
Description (OCR text may contain errors)
United States Patent 0 "cc 207,481
Patented Apr. 25, 1967 FILTER PAPER Southwick W. Briggs, Montgomery County, Md., and William A. Brazerol, Washington, DC. (both Stone Filter Co. Incorporated, 900 Franklin St. NE., Washington, DC. 20017) Filed Dec. 28, 1964, Ser. No. 83,165
Term of patent 14 years (Cl. D16-1) FIG. 4
FIG. 1 is a top plan view of a portion of a sheet of References Cited by the Examiner filter paper showing our new design UNITED STATES PATENTS FIG. 2 1s a fragmentary perspectwe vlew ShOWll'lg the top surface of filter paper embodying the new design; 184954 4/1959 Muller 1359-6 X FIG. 3 is a fragmentary perspective view showing the 2,035,398 3/1936 P bottom surface thereof; and 2,064,239 12/1936 Alvaz' FIG. 4 is an enlarged fragmentary cross section taken 2250318 7/1941 Wanace' along line 4-4 of FIG. 2. 2,669,995 2/1954 P The design is repeated horizontally and vertically. 334L809 7/1964 Dlmalo et We claim: OTHER REFERENCES l f g deslgn for filter paper as Shown and LArchitecture (d aujourd .Lui), Feb. 3, 1960, page CXIII, panels B and D.
Seaporcel Brochure, recd Apr. 28, 1949, cover page patterns C and D located on central portion of page.
WALLACE R. BURKE, Primary Examiner.
B. ANSHER, Assistant Examiner.