Interference No. 103,036
The Burroughs et al. specification reads at column 6,
lines 4 to 29 as follows:
Referring to FIG 1, a battery-strength
indicator device 10 of the present invention
is illustrated. The indicator device has an
indicator chamber, cell or bubble 12 formed
in strip 16. Preferably the cells of the
present invention are sealed cells. Conduc-
tive layers 14 run the length of the strip
into the indicator bubble to form spaced
apart electrodes. The indicator bubble
contains an indicating material 17 which
undergoes a visible change when the voltage
potential across the indicator cell exceeds a
predetermined value. At least one side of
the strip 16 is transparent or translucent.
The improved battery 18 of the
present invention is illustrated in FIG. 2.
The battery has an anode 20 and a cathode at
its base (not shown). The indicator device
10 is attached to the side of the battery,
with the ends of the device connected to the
anode 20 and the cathode. If the device is a
constant-drain device, that is, the device is
on continuously, the indicator cell undergoes
a visible change when the output voltage of
the battery drops below a predetermined
value. In an alternative embodiment, the
battery has the indicator device of FIG. 1A,
which includes a strip 16, conductive leads
14, an indicator cell 12, and a switch 24.
The switch is biased to be in an off
position, and, thus the indicator device is
only actuated when the switch is on, thus
preventing a constant drain on the battery.
Dr. Powers acknowledged that the term, "label," is not
disclosed in the Burroughs et al. specification.
In this regard, Dr. Powers testified that . . .
the tester is integral with the battery and
to be usable it has to be on the outside of
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Last modified: November 3, 2007