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today was not written for publication and is not binding
precedent of the Board.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. 19
UNITED STATES PATENT AND TRADEMARK OFFICE
_______________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
_______________
Ex parte TAKANORI CHIBA,
TAKUYA MATSUMOTO, KEIJI ONO
and TAKEHIRO SHIMIZU
______________
Appeal No. 2002-1768
Application 09/538,786
_______________
ON BRIEF
_______________
Before WARREN, LIEBERMAN and DELMENDO, Administrative Patent Judges.
WARREN, Administrative Patent Judge.
Decision on Appeal
This is an appeal under 35 U.S.C. § 134 from the decision of the examiner finally
rejecting claims 4 through 10. Claim 4 is illustrative of the claims on appeal:
4. A process for the production of a rigid polyurethane foam comprising reacting:
a) an aromatic polyisocyanate and
b) a polyether polyol prepared by addition polymerization of o-toluenediamine with an
alkylene oxide
in the presence of
c) a blowing agent comprising cyclopentane and water in an amount up to 1.0 parts by
weight for every 100 parts by weight of polyol,
and, optionally, in the presence of
- 1 -
Page: 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007