Appeal No. 96-2551
Application 08/037,767
wherein control current is drawn from the control
electrode of the power switching device through the
second controlled switch to the second capacitor in
response to the development of a secondary pulse of the
second polarity and the second magnitude, at which point
charging current is provided to the first and second
capacitors from the secondary winding of the
transformer; and
wherein the control current is provided by the
first capacitor to the control electrode of the
power switching device through the first
controlled switch in response to the
development of a secondary pulse of the
first polarity and the first magnitude,
the first capacitor being discharged
thereby until a voltage magnitude of the
first capacitor discharges below the first
magnitude of the secondary pulse of the
first polarity and the first magnitude, at
which point charging current is provided
to the first capacitor from the secondary
winding of the transformer.
A. The § 112 rejection
The § 112 rejection was applied against claim 2 for the
first time as a new ground of rejection in the examiner's Answer.
Appellant's reply brief was refused entry by the examiner on the
ground that it was not limited to the new ground of rejection.
Appellant filed a petition arguing that the reply brief is
responsive to the § 112 rejection of claim 2 and to a number of
arguments presented for the first time in the Answer. In a
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