Appeal No. 2003-0407
Application No. 09/550,503
process as specified in Kodak publication H-24, so as to result
in a minimum density of 0.07 or less.
The examiner relies upon the following references as
evidence of obviousness:
Brick et al. (Brick) 5,709,983 Jan. 20, 1998
Gerlach et al. (Gerlach) 5,955,255 Sep. 21, 1999
Anderson et al. (Anderson) 5,962,207 Oct. 05, 1999
Appellants' claimed invention is directed to a black and
white silver halide motion picture sound recording film
comprising a transparent support and an antihalation layer. The
antihalation layer comprises a solid particle dispersion of
filter dye that is readily solubilized and removed or decolorized
upon standard processing. According to the present
specification, "[h]alation protection is conventionally
accomplished in current sound recording films by using a gray-
tinted support, or by including an anti-halation layer containing
permanently colored dyes, to yield a neutral density," which
neutral density "increases the minimum density (Dmin) of current
sound films by 0.2 density units" (page 2 of specification, lines
30-34). Standard processing of the claimed recording film
results in a minimum density of 0.07 or less. According to
appellants, the advantage of the present invention "is obtained
by substantially eliminating the traditional permanent density
incorporated in prior art sound recording films, which permanent
-2-
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007