The opinion in support of the decision being entered today was not written
for publication and is not binding precedent of the Board.
Paper No. 13
UNITED STATES PATENT AND TRADEMARK OFFICE
__________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
__________
Ex parte XIAN CHEN
__________
Appeal No. 2001-1880
Application No. 09/273,835
__________
ON BRIEF
__________
Before WINTERS, SCHEINER and MILLS, Administrative Patent Judges.
MILLS, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal under 35 U.S.C. §134 from the examiner's final
rejection of claims 1-26, which are all of the claims pending in this application.
Claim 1, 4, 5, 8, 14 and 21 are illustrative of the claims on appeal and read as
follows:
1. A method for determining the nucleotide composition of an oligonucleotide
which comprises the steps of:
(a) incorporating a stable, isotope-labeled form of one of the four nucleotide units
of an oligonucleotide into the oligonucleotide under investigation in place of the ordinary
nucleotide therein, the other three types of nucleotides in the oligonucleotide being
unlabeled;
(b) measuring the mass peak of the unlabeled oligonucleotide using mass
spectrometry;
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