Appeal No. 2002-0258
Application No. 09/254,402
(filed Mar. 24, 1997)
The Rejections
Claims 11, 13-17, 19, and 20 stand rejected under 35 U.S.C. §
103(a) as being unpatentable over Liu in view of Garzon.
Claim 12 stands rejected under 35 U.S.C. §103(a) as being
unpatentable over Liu in view of Garzon and Dietz.
Claim 18 stands rejected under 35 U.S.C. §103(a) as being
unpatentable over Liu in view of Garzon, Dietz, and Nakazawa.
The Invention
The invention relates to a measuring arrangement for
analyzing gas components in gas mixtures, such as exhaust gas
components of internal combustion engines. The arrangement
includes at least one electrochemical solid electrolytic test cell
having at least one cathode. A selective oxygen-ion-conductive
layer covers the cathode and includes a mixed-conductive local
ceramic material. An electrically nonconductive layer separates
the cathode from the selective oxygen-ion-conductive layer. The
electrically nonconductive layer contains gas-permeable portions
which conduct the oxygen to the cathode. (Appeal Brief, page 2,
lines 13 - 27). Other details are discernable from reproduced
claim 1, above.
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