Appeal No. 1997-2856
Application 08/394,251
Dale states that direct current is used to drive a
transistor at high frequency which imposes a high frequency AC
current on the secondary of the transformer (page 20 under
"Solid-state ballast"). This teaches that the transistor is
driven at high frequency instead of "at a periodic rate equal
to that of the alternating voltage" as recited in claim 12
even if it is true that "each current pulse having a duration
distinctly shorter than half of that of a complete cycle of
the alternating voltage" because of its high frequency. The
Examiner does not state where the limitations of claim 12 are
otherwise taught by the references, including Genuit, and thus
has failed to establish a prima facie case of obviousness.
The rejection of claim 12 is reversed.
Appellant argues that the features of claims 13, 16, and
17 are "neither disclosed nor suggested by any of the applied
references" (Br11; Br12) and that these features are "not
addressed by the Examiner in his Office Action" (Br11; Br12).
We do not find where the Examiner addresses the specific
limitations of claims 13, 16, and 17. Nevertheless, we have
examined the references for what they clearly disclose.
- 21 -
Page: Previous 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Next
Last modified: November 3, 2007