Appeal 2007-0694
Reexamination Control 90/006,433
Patent 5,428,933
37) Horobin ‘969’s blocks contain removable end wall inserts 20 that
have projections 38 and recesses 40. (Horobin ‘969, Fig. 1 and col. 4, ll. 13-
28).
3. Horobin, U.S. Patent 4,884,382
38) Horobin ‘382 is directed to a modular concrete-block form that is
shaped in a rectangular configuration that is formed from side panels
adapted to receive strut members. (Horobin ‘382, Abstract).
39) As with Horobin ‘969, the concrete-block form of Horobin ‘382 has
square projections and recesses on its top and bottom edges. (Horobin ‘382,
Fig. 1).
40) Horobin ‘382 Figure 1, depicted below, provide a perspective view
and an end view of Horobin’s block form:
15
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