Appeal No. 1995-4188
Application 07/860,965
OPINION
We have carefully considered all of the arguments
advanced by appellants and the examiner and agree with
appellants that the aforementioned rejections are not well
founded. Accordingly, we reverse these rejections.
Appellants’ sole independent claim (40) requires that the
labeled antigen saturates the antigen-binding sites of the
antibody prior to a sample being introduced into the
immunosensor.
Appellants argue that Maggio discloses a competitive flow
immunoassay wherein a sample is premixed with a known amount
of labeled antigen and then is introduced into a column
wherein any antigen in the sample competes with the labeled
antigen for the available binding sites on the immobilized
antibodies (brief, page 4). Appellants’ claimed immunosensor,
appellants argue, is a displacement flow immunoassay wherein
page 1).
4
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