Appeal No. 97-3030
Application No. 08/254,181
Hedden, to include a porcelain enamel metal substrate as the
heating element, to include a thermal barrier slot for
inhibiting the transfer of heat along the porcelain enamel
metal substrate. The examiner’s rationale of "to better
control the pattern of electrical heating" (supplemental
answer-page 3) is not persuasive as there is no suggestion
that there would be any problem with the pattern of electrical
heating when using a porcelain enamel metal substrate.
Since we do not sustain the rejection of claim 15 under
35 U.S.C. § 103 over Pons Pons, Hedden and Hung, we also will
not sustain the rejection of claims 17 and 18 since these
claims depend from claim 15.
Finally, we turn to the rejection of claim 19 under 35
U.S.C. § 103 as unpatentable over Pons Pons, Hedden, Hawkins
and Maury. Among other things, claim 19 recites
said mechanical connection comprising a
forked portion formed on the ends of said
electrical contact prongs, said forked ends
adapted to securely engage said porcelain enamel
metal substrate as an edge connector.
Hawkins is applied by the examiner to show that it was
known to use electrical prongs adapted to a 120 volt outlet.
13
Page: Previous 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Next
Last modified: November 3, 2007