Appeal No. 2001-2337
Application No. 07/493,442
The references relied on by the examiner are:
Matsumoto et al. (Matsumoto) 4,675,290 Jun. 23, 1987
Kawaguchi et al. (Kawaguchi) 4,820,649 Apr. 11, 1989
Batz et al. (Batz) 4,845,030 Jul. 04, 1989
deCastro et al. (deCastro) 4,999,288 Mar. 12, 1991
Hammond et al. (Hammond), “Development of an Enzyme-Based Assay for
Acetaminophen,” Analytical Biochemistry,Vol.143 pp.152-157 (1984)
Arter et al. (Arter), “Development of a Multilayered Colorimetric Assay for Serum
Acetaminophen,” Clinical Chemistry, Vol. 39, No.6, p. 1230 (1993)
GROUND OF REJECTION
Claims 9 through 11, 14 and 17 stand rejected under 35 U.S.C. § 103. As
evidence of obviousness, the examiner relies on Arter, Hammond, Matsumoto,
deCastro and Batz.
Claims 13, 15 and 16 stand rejected under 35 U.S.C. § 103. As evidence of
obviousness, the examiner relies on Arter, Hammond, Matsumoto, deCastro, Batz and
Kawaguchi.
On consideration of the record, we reverse.
BACKGROUND
The present invention “relates to a spectrophotometric assay for the detection of
acetaminophen in aqueous fluids which is carried out with a dry analytical element”
(specification, page 1). “An advantage of the invention is that the water-soluble
coupling agent and either the enzyme catalyzed oxidative coupling or the ferricyanide
coupling allow for a rapid reaction” (specification, page 4).
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