Appeal No. 97-1932
Application 08/028,047
plurality of sharply-pointed cathode structures being provided
per picture element, said array of sharply pointed cathode
structures being separated from the extraction grid layer by a
second insulator layer, said electron emitter layer being
formed of a material for emitting electrons under influence of
an electric field; and
an envelope sealed to the face plate and enclosing the
emitter layer, said extraction grid layer and said phosphor
layer in a vacuum,
said transparent face plate, said thin film phosphor
layer, said conductive anode layer, said at least one
insulator layer, said conductive extraction grid layer and
said electron emitter layer forming a unitary, monolithic
structure.
The examiner relies on the following references:
Oess et al. (Oess) 4,020,381 Apr. 26, 1977
Shmulovich 4,626,739 Dec. 02, 1986
Kishino et al. (Kishino) 5,153,483 Oct. 06, 1992
The admitted prior art disclosed in appellant’s specification.
Claims 25, 26 and 29-34 stand rejected under 35 U.S.C.
§ 103 as being unpatentable over the teachings of Oess in view
of Kishino. Claims 27 and 28 stand rejected under 35 U.S.C. §
103 as being unpatentable over the teachings of Oess and
Kishino and further in view of the admitted prior art. Claims
13 and 14 stand rejected under 35 U.S.C. § 103 as being
unpatentable over the teachings of Kishino in view of
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