Appeal No. 2002-0405
Application No. 07/325,269
Claims 19/6 - 19/8
Bednorz teaches superconducting compounds containing copper
(claim 19/6), barium (claim 19/7), and lanthanum (claim 19/8).
Therefore, claims 19/6 - 19/8 are anticipated by, or obvious
over, Bednorz for the same reasons discussed above with respect
to claims 3 and 19/15 - 19/18.
4. Claims 19/5 and 19/9 are rejected under 35 U.S.C. 103 as
obvious over Bednorz in view of the admitted prior art.
Claim 19/5
Bednorz discloses superconducting mixed metal oxides
prepared by the coprecipitation method disclosed in Ref. No.
[17]. Bednorz, p. 190, col. 1. Ref. No. [17] discloses a
coprecipitation method wherein aqueous solutions of La, Al, Sr
and Ti nitrates were added to an aqueous solution of (NH4)2CO3 to
form metal salts. Ref. No. [17], p. 182. Accordingly, it would
have been obvious to have used organic salts to provide the
respective predetermined stoichiometric amounts of the metals
required in the claimed superconducting mixed metal oxides.
Claim 19/9
The present specification teaches that metal superconductors
containing gadolinium-barium-copper “have been reported to
exhibit superconducting properties.” Specification, p. 9, l. 32
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