Interference No. 103,878
Exhibit 5 is several pages from the IES Lighting
Hand- book. These pages bear a printed date of 1947. On page
M-178, two streetlight fixtures are described. The second
fixture,
OV-18, is a Luminaire with a universal metal head and a metal
reflector having a parabolic contour with a metal skirt. The
bottom of the lamp filament is approximately e of an inch
above the skirt which is described as giving a cutoff of
substantially 90E, viz., an absolute cutoff of 85E. The
design is acknowledged to provide more light “up and down the
street” with reduced glare. By locating the lamp up in the
reflector, the lamp is “given added protection from
outside forces.”
Exhibit 5 differs from the senior party’s claimed
subject matter in that it is not stated that the reflector is
made of spun aluminum with a matte finish. We note that,
while Exhibit 5 has a flange or skirt at the bottom of its
parabolic contour, such is not precluded by the senior party’s
claims. No latches are expressly shown by Exhibit 5.
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