Appeal No. 1999-2443 Page 5
Application No. 08/857,144
Mabrey discloses a display sign. As shown in Figure 1,
the display sign includes two main separable elements, namely
a housing 9 and a chassis 11. The housing 9 includes a
cabinet 10 and windows 10a and 10b. Display assemblies 21 and
25 are removably mounted in the housing 9. The chassis
includes a frame 32 and fluorescent tubes 38 and 39. Mounted
on top 12 of the cabinet 10 is a ballast 26 onto which are fed
wires 27 which are connected to a source of electricity (not
shown) for energizing the light source (i.e., fluorescent
tubes 38 and 39). Mabrey teaches (column 2, lines 69-72) that
the top of the ballast 26 is provided with apertures 26a for
receiving bolts to secure the entire sign to a ceiling.
Mabrey also discloses (column 1, lines 69-70) that the sign is
adapted to be mounted to a ceiling or wall.
The examiner has taken the position (answer, pp. 3 and 4)
that the claimed "adapter for mechanical and electrical
connection to a lighting track" is readable on the wires 27 of
Mabrey. The appellants have taken the position (brief, pp.
38-42, and reply brief, pp. 4-7) that the claimed "adapter for
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