Appeal No. 93-4332
Application 07/707,717
of about 2 hours or more.” We also note that at such
temperatures, the bisimide copolymer product will not be fully
cured. See the specification at page 2, lines 14-17 and page 8,
lines 17-19. We therefore construe the language, “non-gelling
elevated temperature” to mean a temperature ranging between at
o o
least about 130 C to about 200 C and wherein the product derived
from such heating step is a partially-cured bisimide/triene
copolymer.
In comparing patent claim 21 with application claim 1, we
note that patent claim 21 is directed to a method for preparing a
fully cured bisimide whereas application claim 1 is limited to
the preparation of a partially cured bisimide. Furthermore, we
note that the subject matter of patent claim 21 is narrower in
scope than the subject matter of application claim 1. For
example, step (a) of patent claim 21 calls for a C triene
6-20
which is represented by one of formulas I and II whereas
application claim 1 places no restriction on the triene. We also
note that with respect to step (b) of patent claim 21, a heating
o o
temperature range of “about 170 to about 350 C” is recited
whereas application claim 1 is limited to a temperature range of
130 to 200 C. It is apparent that with respect to theo
temperature ranges, patent claim 21 and application claim 1
6
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Next
Last modified: November 3, 2007