Appeal No. 2002-2274
Application No. 08/387,158
§ 1.192(c)(7)(1997).
Rejection over Linder in view of
Apostolos and the appellants’ admitted prior art
Claim 33
Linder discloses a sacrificial anode for cathodic corrosion
protection, comprising about 0.01 to 1.0 wt% manganese, 0 to
about 20 wt% zinc, and 0 to about 0.1 wt% indium, the balance
being aluminum having an iron content of up to about 0.5 wt%
(col. 1, lines 21-27).
Linder does not disclose the sacrificial anode in
combination with a metal-reinforced concrete structure. However,
the teaching that the sacrificial anode is for cathodic corrosion
protection (col. 1, lines 6-8) would have fairly suggested, to
one of ordinary skill in the art, use of the sacrificial anode in
known cathodic protection applications. Such applications
include protection of the metal reinforcement in a reinforced
concrete structure as acknowledged by the appellants’ (“aluminum-
zinc alloys have been used for sacrificial cathodic protection of
steel reinforcing in concrete”; specification, page 2, lines 1-
2), and as disclosed by Apostolos (col. 2, line 55 - col. 3,
line 4; col. 3, lines 33-37).
The appellants argue that their amount of indium is 10%
higher than that of Linder (brief, page 8), i.e., the appellants
4
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