Appeal No. 1997-1513
Application No. 08/249,736
particularly from 400 to 700 nm. Additionally, the claimed
polarizing film is characterized as exhibiting excellent
polarizing activity as well as having excellent durability to
water and heat.
As evidence of obviousness of the herein claimed
polarizing film, the examiner relies principally on the Ogino
reference. Similar to the herein claimed polarizing film,
Ogino also discloses a dye-containing polarizing film
comprising a polarizing film material and a metal-containing
dye represented by the generic formula (I) which is shown in
the abstract and page 1 of the publication. The metal-
containing dye represented by formula (I) of Ogino may be used
either as the sole dye incorporated into the film substrate or
in combination of "two or more" dyes. See Ogino at page 7,
lines 16 and 17. Additionally, the metal-containing dye
represented by the formula (I) of Ogino may also be used in
combination with other organic dyes for the purpose of
correcting the hue and improving the polarizing activity. See
Ogino at page 7, lines 17 and 18. Also see claims 13 and 14
of the Ogino patent publication. As clearly evident from the
arguments presented by appellants in their briefs and the
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