Appeal No. 1995-2781
Application No. 07/804,868
thermal solvent of appealed claim 1 does not expressly recite
the inclusion of a dispersion aid. That is, patent claim 1
comprises a thermal solvent dispersion which includes a
dispersing aid which is not recited by the appealed claim 1.
To remedy the difference between the subject matter of
appealed claim 1 and patent claim 1, the Examiner relies on
Chari. Chari describes stable dispersions of photographic
coupler materials which are incorporated in photographic
systems. (Column 1, lines 6-9). The photographic system of
Chari is said to include combining a permanent solvent
dispersion and a coupler dispersion. (See figure 1 and column
3, lines 47-64). Chari discloses, prior to his invention, the
separate dispersions were prepared by milling or
homogenization and therefore required the use of large amounts
of energy. (Column 1, lines 51-56). The coupler dispersion
is said to be combined with a compatible solvent which serves
to activate the coupler. Chari describes solvents which meet
the thermal solvent required by the appealed claims. (See
columns 9-13). Chari discloses the solvent dispersion is
formed with the use of a dispersion aid and without the use of
mechanical operations, such as milling or homogenization.
(Column 3, lines 39-42). Chari states prior to his invention,
14
Page: Previous 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Next
Last modified: November 3, 2007