Appeal No. 2004-1073
Application No. 09/046,105
and wherein the oxide or salt is present in an amount of about
0.1 to 2% by weight of the fiberglass cloth; and wherein the
oxide or salt is incorporated in a glass composition selected
from the group consisting of D glass, S glass and E glass.
The examiner relies upon the following references as
evidence of obviousness:
Loughridge 3,531,677 Sep. 29, 1970
Miyauchi et al. (Miyauchi) 5,942,331 Aug. 24, 1999
Shioura et al. (JP ‘552) Sho 63-225552 Sep. 20, 1988
(Japanese patent)
Naka et al. (JP ‘633) 03-261633 Nov. 21, 1991
(Japanese patent)
Appellants' claimed invention is directed to a woven
fiberglass cloth comprising a glass composition having an oxide
or salt of copper or chromium therein. The compounds of copper
and chromium allow the glass to absorb UV light and be used in
substrates for printed circuit boards and the like. According to
appellants, "[t]he present invention provides for significantly
reducing, if not entirely eliminating, UV light transmission
through a reinforced substrate" (page 4 of Brief, second
paragraph).
All the appealed claims stand rejected under 35 U.S.C. § 103
as being unpatentable over either JP ‘552 or JP ‘633 in
combination with Loughridge and Miyauchi.
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