US D203372 S
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Description (OCR text may contain errors)
D25-422 SR D7463 OR D 203,372
United States Patent Office: 2033 Patented Dec. 28, 1965 REFRACTORY BLOCK Charles H. Miller, Youngstown, and William J. Wilson. Columbiana, Ohio, nssignurs to Kaiser Aluminum 84 Chemical Corporation, Oakland. Calif.. a corporation of Delaware Filed Mar. 11, 1965, Ser. No. 84,241
Term of patent 14 years (Cl. D8l-25) FIE-E Des. 203,372
PAGE 2 FIE 5 FIGURE 1 is a perspective view of a refractory block showing our new design;
FIGURE 2 is a plan view thereof;
FIGURE 3 is a partial sectional elevation view taken along the line 33 of FIGURE 2;
FIGURE 4 is a perspective view of a refractory block showing a modified form of our new design;
FIGURE 5 is a plan view of the block of FIGURE 4;
FIGURE 6 is a partial sectional elevation view taken along the line 66 of FIGURE 5; M
FIGURE 7 is a perspective view of a refractory block showing a further modified form of our design; and
FIGURE 8 is a plan view thereof.
PAGE 5 We claim: The ornamental design for a refractory block, substantially as shown and described.
References Cited by the Examiner UNITED STATES PATENTS D. 198,114 4/ 1964 Hall D18--2 X 2,652,793 9/ 1953 Heuer et al. 2,853,872 9/ 1958 Samuel. 2,960,048 1 1/ 1960 Garretts. 3,086,327 4/ 1963 Samuel et a1.
WALLACE R. BURKE, Primary Examiner.
A. HUGO WORD, Assistant Examiner.