Appeal No. 1996-3052
Application 08/064,639
being obliquely formed in the boundary between two portions
for the purpose for reducing the gap between the G2 electrode
and the G3 electrode in order to improve the focusing perfor-
mance without deteriorating the breakdown voltage characteris-
tics.
Independent claim 1 is reproduced as follows:
1. A cathode-ray tube which has an electron gun
that includes a one piece electrode plate, wherein said one
piece
electrode plate has a plurality of beam passage holes and bead
supports, a portion having said beam passage holes and a
portion having said bead supports are formed as a one piece
structure, said two portions have different thicknesses and
steps having inclined and continuous walls between said two
portions.
The examiner does not rely on any references.
Claims 1, 3 and 4 stand rejected under 35 U.S.C.
§ 103 as being unpatentable over Appellants' admitted prior
art.
3
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