Appeal No. 1998-0762
Application No. 08/379,576
have attractive characteristics from the viewpoint of the
environment...”. See page 9. Hartman et al referred to in 2
Painter is directed to employing EDDS as a preferred chelant
for a laundry detergent composition. Thus, it can be inferred
from the teachings of both Painter and Dany ‘895 that
chelants, such as EDDS and TAED, are useful for both laundry
or dish-washing detergent compositions. Indeed, appellants
acknowledge that a well known chelant, EDDS, is known to be
useful for replacing all or part of a conventional chelant
already employed in a laundry composition and useful for
removing food, beverage and certain organic stains. See
Specification, page 1.
Given the recognition of the advantage of partly or fully
replacing the conventional chelant in a laundry detergent
composition with EDDS, one of ordinary skill in the art would
have been led to employ EDDS to partly or fully replace TAED
in the laundry detergent composition described in Dany ‘895,
with a reasonable expectation of successfully imparting
2Hartman et al. is the same reference the examiner relies
on to reject claim 3.
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